Hmmm, they are much more supple. I guess there would be a weight savings. It's hard to say, because I wasn't playing with skins that were splitboard size. I think the weight would probably be around the current G3 skins? I guess I could probably look this shit up.
The real deal killer for me, is that you are probably going to want to mod the tip/tail attachment to get them working the way you want. Take it with a pound of salt, I have not had these in the field either. Just got to play with them in a very controlled environment. I have a splitboard buddy who was working at the Bentgate last year. They carried Gecko skins and he wasn't all that psyched on them at that time. He's got pretty good gear sense so it might be worth waiting another year. I'll try a little harder to see if I can get my paws on a set to demo this season at least and post up my thoughts.