Lagging when shifting?? (727 auto, w/ full manual valve body)

airwoofer said
My 904 started doing that after I put in the stroker. Adding fluid helped but the issue is still there. It does it whether being manually shifted or in drive. 2-3 shift only as 1-2 is still tight. It's not the KD.

I figure I just need to get a HP rebuild done on the tranny.

Mine does have a SMALL leak, a little bit of build up, and only few drops hit the ground. For me, it does not do it in drive. It does it when manually shifted(2nd to drive is the worst). I'm going to add a little bit of fluid today, and see how much that helps.