I have a TCI glide that I've run for about 12 years. Every time I've freshened it, it's been the same way. I done a number of PG's for other people and haven't seen the same problem.
I tried trueing the drum with no effect. I installed a 1.80 gearset and new input this winter, and a 2 ring servo piston. Hopefully it'll look right next winter...any other thoughts?