Thank you for your replies
Well I tested already the actual Vegas, RPM from 2011 and Torch 2013 (because I own them).
My ranking would be:
reasons: aggresive lift, very direct feeling, great slack
pefect bar feeling, smooth, much slack(but sometimes sketchy...after landing zero pressure on the bar and one second later the kite accelerates as hell
. Might have been the gusty conditions on the testing day)
felt really heavy on the bar( I don't like that)does somehow everything ok, , but unhooked qualities were shit-> pulled like a truck and no slack
But at the moment I have no chance to test the fuel/Chaos, because there are no Slingshot and Cabrinha dealers in the near. But from your answers I guess that the fuel is no 4-Line Torch