Just looking to see what others have experienced with Drift on their Y6's.

Admittedly, mine is not a 3DR, but I am having problems in Drift. Stabilise, alt hold, loiter etc are all fine. Its when you start to push it around in Drift that it starts to become unstable. In Stabilise, it flies around no problem at 60-85kph for an entire pack (around 13-14 minutes), but try the same in Drift, and it start bouncing and "stalling" all over the place.

I suspect it's because my rig is very top heavy, with 2 x 4500 4S stacked on top. But surely I'd see problems in stabilise as well? I've got some 4S2P 6600 packs coming which are lighter - will see if that helps. With 2 x 4500 onboard, it's a slightly alarming 2.7kg (no gimbals or go pros!).

Specs:
Quadframe Y6 Pro frame, with 25mm, 240mm arms, 150mm CF legs.
APM 2.6 with GPS, minimOSD and telemetry
Spektrum AR8000 + TM1000 + Alt & Voltage sensors
6 x Multistar 30A
6 x tmotor 2216-11 (900kv)
3 x 1045 RCtimer CF props
3 x 1147 RCtimer CF props
0420 board cam, and 250mw fatshark 5.8tx

So what flight times are you guys getting, and on what weight and battery packs? And do you have problems in Drift?