Matt,

A plane that has thrust issues will actually try to fall out to it's left or right in a torque roll if it's side thrust issues (depending out what side thrust is wrong, left or right) or fall front or back if it's up/down thrust issues or a combination of both and of course the less the angles are off the less it will try to fall off.

Most people flying 3D that do not correct thrust angles naturally correct for it with the sticks and in most cases never realize it. I have a friend that's a really good 3D pilot and until he started in IMAC he just built planes, never really checked anything trimming wise and flew the snot out of them. He had a certain plane and was really 3D'ing it last year and finally decided to try his hand at IMAC. We worked to get the plane properly trimmed (thrust angles and the like). Once we got everything done he went to 3D it and was pretty amazed at how much easier it was. He needed less corrections in TR's, hovers no longer pulled one way or the other on pullout, if he got into something that was getting ugly in a hurry he used to have to worry about what the plane was gonna do, but after all the trimming he found out that the plane became very predictable and he pretty much knew what it was gonna do at any one moment.

Now there are 2 common ways to get a TR going. One is to give it left stick and the other is just blip the throttle. The torque change will get the plane moving. You then control how fast it rotates using the ailerons. My Ultimate will sit up right into a hover with little effort but it will not TR on it's own. I just blip the throttle and it starts rotating and if I do not add opposite aileron she will really get going. I like a good straight up TR. A fast one looks good to but to me a nice gentle slow one is where it's at.