My understanding is that one way drift is introduced is when the teeth on one side are duller than the other as a result of cutting curves. So unless you use a dedicated blade for ripping and resaw and never cut curves with it, you will introduce drift. I had a blade with severe drift, resharpened it in about ten minutes with my Dremel and the drift was gone or at least dramatically reduced. For minor drift I adjust my shop made fence to compensate for it. Seems like adjusting the fence is a lot easier and intuitive than adjusting where the blade rides in the upper wheel, I keep mine with the the crown of the wheel just behind the kerf.