The Magnum52 engine is a cheap poorly made product the carb is almost impossible to adjust to get good midrange low end and top end the transition sucks for 3-D its not a bad engine for power at full throttle but like I said its almost impossible to get properly adjusted for any type of 3-D performance.
The Magic is not a bad performer, the Magic 300 is not very good, both are cheap products, the extra almost always snaps at the fuse where it is thin above the wing, and has very poor rudder authority the elevator is not too bad and it will slow up and Harrier nicely but flat spins and hover are weak...
If you want to fly 3-D get a YS 63 and either Extreme flights 540 edge or OMP's Katana or Yak in the 40 size these planes will do anything you are capable of doing and much more!!! The YS 63 is well worth the investmant it has excellent top end performance, killer transition and low end power it spins a 13/6 perfectly and its almost trouble free when you get it properly set up...