One of the lovely things about the Pike & Shotte rules is that you can easily adapt them to suit your personal preferences, and as such it is extremely easy to convert the infantry into units of mixed pike and shot. At that time Charles Singleton was one of our group of gamers and I believe that he is now actually working on an ECW supplement for Pike & Shotte rules which I very much look forward to reading and as such hope that he even adds rules for combined pike & shot units as we all definitely preferred them at the time. I have to say that I think that playing ECW as combined pike and shot units is much better than playing them as split units, especially for actions larger than a skirmish.
My own 28mm ECW armies are arranged in smaller mixed units averaging about 20 figures in 2 ranks for foot or 10 figures in 1 rank for the horse both occupying the same frontage which is approximately 9 inches. Obviously I don't expect anyone else to follow my unit sizes but needless to say so long as the units are more or less the same frontage as each other it doesn't really matter what frontage you actually use. Large units are one third wider or 12 inches instead of 9 inches wide and smaller units ore one third narrower or 6 inches instead of 9 inches wide. Tiny units where used are reserved for small platoons of musketeers or small troops of lifeguard cavalry and are one third of the width of a normal unit or 3 inches wide. The rationale I use for the unit frontages is that pike and shot units were 6 ranks deep and an average 500-600 man regiment would have an approximate frontage of 150 yards and an average squadron of approximately 250-300 cavalry would be in 3 ranks and again have a frontage of around 150 yards. Obviously this is based on the normal unit size and large units would represent 700-800 infantry or 350-400 cavalry, small units would represent 300-400 infantry or 150-200 cavalry, and tiny units would represent 100-200 infantry or 50-100 cavalry.
I use the following system for the fighting qualities which I feel give a really good game and don't adversely affect the effectiveness of either arm as the frontages and combat qualities have been adjusted to take into account the original relationships within the rules.
Infantry Rules & Stats
Pike & Shot (Small) HTH = 4, Shooting = 2, Morale = 4+, Stamina = 2, Points 28
Pike & Shot (Normal) HTH = 6, Shooting = 3, Morale = 4+, Stamina = 3, Points 36
Pike & Shot (Large) HTH = 8, Shooting = 4, Morale = 4+, Stamina = 4, Points 44
Shot only (Tiny) HTH = 1, Shooting = 2, Morale = 5+, Stamina =1, Points 17
Shot only (Small) HTH = 2, Shooting = 4, Morale = 5+, Stamina = 2, Points 26
Pike only (Tiny) HTH = 3, Shooting = 0, Morale= 4+, Stamina = 1, Points 19
Pike only (Small) HTH = 6, Shooting = 0, Morale = 4+, Stamina =2, Points 26
Storming Parties (Small) HTH = 4, Shooting = 2, Morale = 4+, Stamina =2, Points 28
Siege Engineers (Tiny) HTH = 1, Shooting = 0, Morale = 5+, Stamina =1, Points 13
Clubmen (Small) HTH = 2, Shooting = 0, Morale = 6+, Stamina = 2, Points 14
Clubmen (Normal) HTH = 3, Shooting = 1, Morale = 6+, Stamina = 3, Points 21
Clubmen (Largel) HTH = 4, Shooting = 2, Morale = 6+, Stamina = 4, Points 28
Highlanders (Small) HTH = 4, Shooting = 1, Morale = 5+, Stamina = 2, Points 17
Highlanders (Normal) HTH = 6, Shooting = 2, Morale = 5+, Stamina = 3, Points 24
Highlanders (Large) HTH = 8, Shooting = 3, Morale = 5+, Stamina = 4, Points 31
Kilponts Archers (Small) HTH = 2, Shooting = 2, Morale = 5+, Stamina = 2, Points 18
Kilponts Archers (Normal) HTH = 3, Shooting = 3, Morale = 5+, Stamina = 3, Points 25
For extra colour and variety I also add different ratios of pike to shot, without exchanging the actual figures I may add. Pike Heavy units add 1 to their HTH number and subtract 1 from the Shooting number. Shot Heavy units subtract 1 from their HTH number and add 1 to their Shooting number.
Morale can also be varied to reflect better or worse armour or status such as: 5+ for units with really poor armour (basically just normal clothing) - 4pts, or 3+ for unusually well armoured or elite status units (although this I would use very rarely) +4pts.
Stamina can be adjusted to reflect the fighting experience of units by giving veteran units an extra Stamina point +4 pts, or raw or particularly fragile units subtracting a Stamina point - 4pts.
Shot only units represent platoons of musketeers or forlorn hopes of musketeers. Storming parties of mixed troop types are best represented using the same stats as small pike and shot units but without any benefits of having pikes.
Highlanders are assumed to be mostly pistol armed so have a shorter shooting range of 6 inches.
Any special rules that you wish to add are used as per the rule book and the points are applied as usual.
Units shoot as a whole and only in exceptional circumstances do I allow a unit to split its fire, such as when straddled at close range by 2 units or when in 'Hedgehog' formation.
With regard to 'Hedgehog' this is a matter of debate as to whether or not this actually ever existed as there is no hard proof that this was ever used in the ECW so it's omission from your games will not detract from the game at all. Cavalry should be disallowed from charging pike and shot frontally and if you want to implement a 'Hedgehog' rule for pike and shot being charged in the flank or rear by cavalry then it is easy to do so. Simply make a successful command roll as a result of a charge by cavalry and place a suitable marker next to the unit to say that it is in 'Hedgehog' formation, arranging your figures in a suitable way and counting it as a frontal pike and shot unit from all directions for the purposes of cavalry attacking them. The cavalry charging them can either choose to flow round and charge past the infantry, halt their charge and rally on the spot or even rally back their remaining charge move, but they may never contact the pike and shot unit. If the command roll is unsuccessful the cavalry are assumed to have made contact with the flank or rear of the pike and shot unit and the usual rules apply for such circumstances. Once in 'Hedgehog' the pike and shot unit has its shooting dice halved but may shoot from two different directions in the same turn although not at the same enemy unit, and if shot at by artillery the rules as written in the Pike & Shotte rule book apply. Personally I have never seen the need for the rule though as our cavalry is never in a position to attack infantry flanks or rear.
Well that's it for now, but in part 2 I will detail the full rule amendments for cavalry and dragoons and also put up a full PDF version of these rule amendments for anyone that wants a fancier version to use alongside their rule book.