Yeah, had the same problems with my older skis.
Here's some pics. They show better than I can explain. The area of the wing ended up about the same area as the flat surface of the bottom of the ski. To find the pivot point (CG) for the axle pivot, Keep lifting the ski to find the point where it sits level. You could stick a pin through the foam to find this point.
I skin the bottom of the skis with vinyl hockey tape to give it a smooth, tough surface.
Oh yeah, snowshoes for my helis.
Found the skis for the S Bach too. These, being a little bigger, I had to pit a strip of small carbon rod across the front of the wing for strength as this is a fairly fast plane.
