The size of the restrictor hole does not affect the pressure to the clutch, only the amount of time it takes to fill the area behind the apply piston. The larger the hole, the faster it fills but the pressure will equalize on both sides of the restrictor at some point.
As long as the seals and rings are tight so as no pressure loss, the trans don't seal up that good anyway, always fluid loss, pump cavitation on acceleration, things like that, I like volume plus pressure.
To the op, never had a lift or trans jack, just jack stands, floor jack and muscles. Two hours or less on the bench. It's all procedure. If you want something done you gotta do it.
