The 2-3 gear shifts in the 65e tend to not like really high RPM shifts cause the pump can't keep up. I would definitely add the High Output Pump Slide spring. It will allow to keep pump pressure up and hold your line pressure for the high RPM shift. Another thing you can do to help this problem is to use the Sonnax Forward/Reverse Abuse Bore Plug (It prevents fluid pressure loss and fluid bypass for the 3rd gear shift) and the Sonnax Heavy Duty 2-3 shift valve.