Cavalry Sqns: Over strenght at six figures and attacks in one line of six figures. Formatted this way because two/three figures on horses attacking eighteen (twenty four with pikes) figures doesn't look sound

I haven't tried what follows below, but lets say I only wanted to game the earlier period what effect would the following modified unit formats have on visual, game and rule factors. I'm thinking along the lines of the big battalion games you see for the Seven Years War but for the League of Augsburg period with Barry's rules.
Foot Regiment w/pikes: instead of having a 18 man unit with a pike stand behind three front stands what if I used just three stands with 9 figures per stand with the center stand middle and rear rank containing 5 to 6 pikes. The regiment would now have a game strenght of 27 figures. Visually would this work and rules wise would musket fire and causalties still work with the factor of six? My thinking is that the musket duel between lines was mostly ineffective with the weapons of the period anyway and had more to do with morale.
Because of the increase in Foot Regiments would Grenadier or Dismounted Dragoon battalions also have to be increase likewise.
Cavalry: Cavalry during the period attacked in two/three and perhaps

On the blog 'Williamite Warfare' the author bases his rules and mechanics on Warhammer English Civil War. One of the ideas I got is his concept of the Demi-Sqn; sqns in his game mechanics always attack in pairs.
So in relation to BtLBv2 if I had sqns attack in pairs but in two ranks with a frontage of three figures each (total of six figures in the front rank and six figures in the rear rank) would this reflect the period visually and would the BtLBv2 rules work using this concept.
I am interested in hearing everybodies views on this.
cheers,
Edward