Well, I'm wondering the shift timing with varying pressures in auto shift. I have used modded small servos in HP VB's of course, but using one in a low pressure tranny is an option I want to explore, if it doesn't change timing at different pressures.

Second, I (and others) have had issues with air entrapment in the modded servos with the blocked return, making the shift softer/slower until bled again. This would happen in a road racer on hard corners in-spite of a deep pan and pickup. So, I devised a couple one-way self-bleeding servo mods and have tested one type with success on a standard servo. Now it's time to try it on a modded one with no return at high pressure. Of course, I trashed the little ones I had figuring I'd never use them. Duh.

David