Hey, sorry to hear about your gripe I know how frustrating it can be sometimes. But listen as someone said earlier there are plenty of variables which you can tweak to get the best performance out of your model you gotta read read and experiment. First off the Throw of your surfaces will affect how much that bird rolls... faster servos might help or adding in positive expos could help (be very careful with expos though) As for the engine, from the description only, id say it's completely broken in just yet give it some more air time and see what happens. Read up in forums aobut the engines and see if anyone has done some actual testing of different props for that engine and see which prop (brand) pitch and type gives the best bang. There really are many many variables but I'm sure if you get that plane set up just right it will give you very close to what you're looking for. I've just heard too many good things about it for it to turn out disappointment for someone. And yes.. wind will make a big difference as someone else stated earlier.