As you probably know, neighter Taarek nor I ever flew anything before we found out about quadcopters. We were real noobs when we started with the stuff and trough having flown the old UAVP and the commercial MK we both never had a lot of pilot experience.
Switching to the UAVP-NG did not really help the issue. As a test pilot you are never sure if the fault was yours or if the software or hardware failed... ;)
Still after a while you get a bit of feeling for piloting and it seems that Taarek finally got the groove. Using a not so heavy NG probably helped too as we did this using our new Mini-NG, which you can see on the following picture:
Using the above Mini-NG it has suddenly become quite easy to fly pirouttes and I did a small movies of Taarek's first stunts. Flying NG is fun... ;)
UAVP-NG - The OS Multicopter: Taarek's first pirouettes
These are Taarek's first pirouttes flown with my brand new Mini-NG