I just got my Lama V4 about 3 hours ago (I'm lucky, I live about 15 miles from Hobby-Lobby Int. so I just went up there and picked one up) and it also has amazing tail control. I couldn't believe how quick it starts and stops rotation. Got everything dialed in as far as yaw and left and right pitch but it tends to drift backwards even with the trim set forward to the stops. I'm pretty sure I can get it dialed in by adjusting the length of the control arm between the servo and the swash-plate though. For you guys that are having trouble with tail drift even when you've set the trim tabs all the way in one direction all I can say is read your instruction manuals a few times. Once you figure out how to decipher the Chine-english grammer it does tell you how to adjust the ESC pots to dial in your copter.

I laughed for 5 minutes when I read the front of the manual and it said,

"WARNING: R/C model is not a toy, please fly it after reading the instruction detailedly."

ROFLOL!

So now go read your instruction detailedly and get your helicopters dialed in.

Good Luck and welcome to the wonderful world of RC.

Danny