Just to answer some of the comments, the base sizes I use for the Impetus rules are the ones listed for 15mm figures 8cm x 3cm for foot and 8cm x 6cm for cav Ive just re based my Early Imperial Romans from Warmaster to Impetus, base sizes allow for units of 80 foot!!looks great! I will post some photos when I taken some.I will also take some close ups of my Wars of the Roses Armies and post.
I used to game with 15mm but I no longer have any armies in this scale so not able to post.
Hope that's answered some of the comments thanks for looking.