a small comment
I am 95 kg dry...no experience with futura, but I can tell you I can uphaul 8.5 2-cam sail on my Aero 117...this is really short, only 237cm...and what Roger says is very right. My front foot is almost touching mast foot and the back foot is at least on a half way between straps.
PS: and my sails is not fully carbon-equiped!
Go and try it, when it is not working, try harder. The same with waterstarting.