I wanted to try balsa cores for long. This winter I finally made it. So far it seems to be a big success, as the ski is very light and skis well.
Some Data:
175cm
119-83-106
1990g/Pair (of course the skis only, without binding)
Sidewalls (2.5mm thick)
Real ski end
Hollow Tip to save weight
Core Thickness: 2.8mm - 13.8mm - 2.8mm
Setup:
0.5mm Mahagoni? (not sure, got it from a friend) veneer
170g/m2 Uni Carbon/Flax (bcomp Amplitex)
140g/m2 biax Carbon (+-45°)
Balsa Core
170g/m2 Uni Carbon/Flax (bcomp Amplitex)
140g/m2 biax Carbon (+-45°)
VDS, Base and Edges
So far, I am pretty satisfied with how the ski works. Uphill is a dream of course, But also Downhill performance is better than with the last touring ski I made, its definitely stiff enough for a touring ski.
Here are 2 pictures taken with my mobile, better pictures will follow:

