+1 for Evo. Nimble, lightweight and plans early. 5.1 for 91kg works great

Will create profile for that!

Thank you very much. That definitely helped. I was wondering how will it work on rails. Now it is clear.

Hi BalsaMichel! Are there any special features working with textreme in comparison with plain or twill CF? Espesialy applying it on curve surfaces

This 1800 g board snapped only when me (90kg) and my friend (88kg) have stood on both sides of board and started to bounce a little. I think this strength is quite enough. The board was repaired after this so called 'load-factor method' testing. P. S. This board was made from 2 cm 55 kg foam with on...

160 g spread tow cf is sheduled for next sandwich board.

But I like sandwich construction more. 200 gcf-3mm airex C. 70.75-200g cf-xps-200 g cf-airex-200g cf. It comes a little bit heavier but more rigid. And it is easier to set rocker.

One layer of 240 g cf. A strip of 20 cm wide 230g ud cf 50cm length both sides. A couple of patches 240g cf over the foil mount for compression strength. Foam is 2 cm airex c70.55.
Lamination done in two stages - top (all layers) , then bottom(all layers).

I built one 106x43 board as Merl did but the foam was 55 kg/m'3. Holds my 90 kg nice. Weighs 1750g with Eva pad. Maybe 80 kg foam is overkill?

Very nice work. Did you tes it?