I only have 5 flights on the Trex 4 of just hovering in all orientations so far and have not looped it yet. I finally got to really push it in FFF and sharp truns, piros, hurricanes, etc. yesterday and I can tell you that it outperforms the Blade like I couldn't believe. If I can get a few packs trough it tomorrow and get the nerve up to try something new Ill report back. BTW mine is a 450SEV2 with hs65mg's, 401, and 9650.
Edit: sorry, freezing rain here with 30 knots gusting to 50 knot winds expected. No loops today with the Rex[].