Gene, you've got to do some more flying to see what is really the matter. It could be a warp, leadout position, or tip weight, or a combination of all three. You have to put the plane through some continous loops, both directions and see how it behaves.
If the plane has adjustable leadouts, use the LineII program, or the calculator in the downloads section, and set the leadouts where it says. That will be very close. If the leadouts are too far back the plane will tend to drop the outboard tip, especially in hard corners down low, like the inside squares.
do some large inside and outside loops. If the plane comes in or gets light on the lines when turning insides it has a left roll. Vice versa for outsides. Warp the other way to correct it.
If the plane tends to bank in or out when turning both directions, then you need to change the tip weight. In your case, if it gets light turning both directions, it needs more tip weight.
Tip weight can mask a small warp. the plane will feel fine most of the time, but if it gets slowed down up high, the warp will take over and make it do something unexpected.