My T-rex on the other hand was a pain to build. Not because the heli is complicated, but the parts just didn't seem to fit right. I had to mess around with soldering irons on every ball joint, including the swashplate one. The whole thing was so stiff, I actually killed the gears on an hitec hb56. After I got it working smoothly, its flight characteristics were not all that great. In order to get it flying decent, I had to upgrade to an aluminum swash, had to upgrade to the evo style CNC precision flybar control system, mixing arms, washout, and then had to litteraly grind some plastic off one of the blade grip to get rid of some of the shakes. I gave up on the blade grips and went CNC. I have it pretty well broken in, and for the money, I should have bought another Shogun.
this is exactly why i don't believe the t-rex is a great heli for a beginner. the parts quality is so inconsistent that you'll inevitably spend more time fiddling, fixing and tweaking than flying. not fun (unless you're in to that sort of thing.) i also agree that the stock shogun is a much better flying heli than a stock t-rex, but that may be more a matter of opinion.