Raynman:
You say in your post that the roll is quick. That's probably a stall. You need to get more airspeed before you lift off and then climb gradually to allow the aircraft to gain some speed. I had the same EXACT problem with my Decathalon. A couple of times I horsed it off the ground and it would drop a wing. Luckily, I saved it, but it was a near-miss thing.

I don't see how the misalignments you described would cause such a drastic roll. I put my money on stall. Gain more speed before lifting off and correct with rudder not ailerons.