And another +1 for the G11.
I've mostly been using it a focal lengths of 530mm, but have just started with 1100mm and a fairly heavy old 10" Starfinder OTA. The G11 - although I have the simpler digital drive has worked without an issue since I bought it 2.5 years ago.
Images taken with G11 out of box and no tinkering.
www.astrobin.com/users/alocky
Cheers,
Andrew.