How big are we talking? I often cut the foam between two sections in a KR case to make a double size area. I keep the foam attached on one side though as it helps hold the figure and could later be used for two figures again if desired.
Hi Joe
It's the all-round size/depth, protrusions and 40/60mm bases!
Yep - tried cutting dble sections and it works OK for relatively "flat" figures it's the 75mm tall giant with flailing arms, 50mm tall zombie troll and the major winged demon things ;-)
I seem to recall seeing solid foam block you could custom cut?
BTW - tremendous game Joe - have introduced it to half-a-dozen others and they love it although not enough to start painting figures again!