I flew the Helium for the first time this evening. I'm 80Kgs on a 136 TT. It was 13-18 knots so not quite light winds but enough to impress me with the kite

The Helium just stays parked where you want & you can forget about it/no need to sine it, very smooth and stays upwind. Like Greenarrows says, depower it once it's over 15 knots and I had no trouble flying it when everyone else was on their 11/12/13/14m kites.
I'd say the bar pressure is actually lighter than my Element 3 13m, except in some gusts. Turns on the Helium are a lot slower than the Element 3 but still very responsive for such a large kite.
Looking forward to trying it out in 8-12 knots with my 142 TT