I agree with John¡¯s approach - like him I have a stand of 3-4 15mm figures instead of a single 28mm for my AWI stuff.
But I made the mistake of putting my Regulars in 2 ranks per base, which produces too deep line formations sometimes - as John says, there¡¯s some photos on the FB page, I think. Next time around I intend to have 4 figures in a single rank on a 40x20mm figures instead - I just can¡¯t face the idea of rebasing all those figures that I¡¯ve already done!