I have a Maestro II which I use a lot and it's a pretty decent kite for the money. It can pull quite hard, I generally use mine in 8-15 mph range, after that it really starts to pull. Assuming the bridle and lines are equal I'd try adjusting the uphaul line as it can be a bit sensitive to that setting and sometimes does some weird things if you have it set wrong.
You can modify the kite pretty easily to make it a much better trick kite, the mods were put together by a guy who no longer posts here, there were instruction online but they've been taken down however I have a copy so if you PM me your email address I'll send you a copy. Basically moving the upper spreader & standoffs, shortening the lower spreaders and retying the bridle - it does make a big difference over standard.
This is the modded kite in action.
Current Bag:- HQ Shadow, Spiderkites Zodarion, Flying Wings Soul, Old blue HQ Jive , 'PAW' modded HQ Maestro II, Delta Hawk,