No problems getting height, it kinda wants to stay high. COG and trim is all good from how it felt to me (and from my mate tells me, he's flown them for years).
One thing I forgot to mention is I've got Phoneix RC sim on my laptop too which is great as I can use my TX with it. Need to get more use from it really, just been busy at home lately.
Totally hooked now, but know I need more airtime/assistance before going solo.