built my plane stock with a TT pro 46, and it has this tendency of yawing to the left on loops or whenever I apply engine, it is also snapping quite a lot when It gets a little low on speed, it is being quite a nimble hands full plane.
There are posts and at least one thread that include discussion and pictures and drawings about the airplane's ailerons and their connections.
The stock hardware and rigging cause the ailerons on the top wing to move somewhat less on the side going up and a lot less on the side going down. That results in an airplane whose 4 ailerons are moving 3 different amounts at once. Makes a great airplane into a
"hands full plane", wouldn't ya' say?
do a search
the info is already here