I just received my DX7 the other day and installed the AR6100 receiver in my Axe. I'm impressed with all the programming options with the control over my Axe. I just wish there was a way to turn off the beeps on the control so I can change the programming without disturbing others. Anyway after messing around with the programming and getting frustrated with setting it up, I think I just about have it. I am able to do fairly quick turns and have quick response with my current setup. So far this is what I have for my Normal flight mode:

Throttle Curve: 0, 50, 77, 89, 100
Pitch Curve: 50, INH, 60, INH, 70 (seems to work best for me, what are your PC and TC settings?)
Revo Mix: all at 0%
no programming mix
Sub trim: Rudd=R20, (to keep it from moving), Elev=D20 (center servo), Pit=H25 (center servo)
Travel adj: all at 100%
Swash Mix: 3 servo 120 - Aile=-100%, Elev=+100, Pit=+100 (Max movement on my swash for quicker response)

After a bit of tweaking, I found that this setup works well for me with the control responding similar if not better than the stock controller over my Axe. What I don't understand is the pitch curve that others have and recommended. If you noticed my pitch curve is from 50-70 and not 0-100 like others have set. The reason why I have mine setup like this because I noticed if I go to much over 70, it seems like I give it to much pitc and the motor sounds like it gets bogged down, the battery doesn't last long (5min), and the motor gets hot. With a PC of 50, that gives me about 1-2 degrees of negative pitch to get my back down when I cut the throttle. I can hover at 1/4 over mid stick.

My flight times at not that good using 1350 Lipo's. I'm getting about 7-9 mins. The main motor temps are down to 125-130 degrees after a session. I'm wondering if it's my setup that is reducing my flight time ever though it is flying pretty good for me.