the extruded polystyrenes are nice and consistent, unlike the beaded foams that have all the gaps and air pockets between the beads. they're usually denser and need a little more heat and a slower cut speed.

i make most of my wings from a stiff 2.2 lb. foam. after cutting it has a very nice and smooth finish that can be used as is for the small planes or paper wrapped if i need a super strong wing.


dave