Lol, u grannies need to go play bingo

"certain aircraft which exhibit odd CT properties (like the 38). '
?
I use CT on all planes except 38. I just cant trim elevator, aleiron and rudder at the same time. The 38 only needs to have its elevator trimmed, and thats easy with the hat switch.
All planes get a bonus from using manual trim imo, if you have your elevator trimmed to the top, anytime u pull nose up the plane will actually pull nose up faster. Hell if I know why, maybe because the elevator is on the "up" position the moment u stop giving it an input from the joystick vs. the elevator trimmed to the middle receiving a j-stick command to pull nose up? Dunno, I just know its faster for some reason. You can also point nose down and trim elevator fully up, doing nice corckscrew dives and gaining speed.. do that without trimming but instead pulling the nose up with j-stick, you wont gain much E.