i have just got my 6L90E rebuilt for my CTSV,,
new stock clutch packs for 1-2-3-4, 2-6 and Lo-R
alto red eagle packs for 3-5-R (double sided) and 4-5-6 (single sided)
brand new stock pistons, rings, seals,, etc,,

the trans grips fine in all gears given that the car is doing around 700rwhp,,
issues are shift related:

-3rd shifts so harsh in low rpm but shifts super in higher rpm
-4th and 6th shifts hesitate and take longer than usual

i have raised line pressure in tune for all shifts as recommended by tuning school and alto as well,, torque management left on like stock,,

please, help,,