I'm contemplaing the Superior kit because of a hard 1-2 shift and almost simultaneous 2-3 and 3-4 shifts under light throttle. It's in 4th before 40 mph under light throttle but no flaring. It's actually not so bad since the engine has enough torque but I don't think this 722.3 was designed to emulate a Powerglide. With more pedal, 1-2 firmness is more acceptable (not actually softer) and 2-3 and 3-4 spacing... well, there is perceptible spacing and it seems right.

I can install the whole kit but I hate to introduce a lot of variables. I'm looking for support to do step 6, maybe step 7 and maybe step 8, and the 2-3 and 3-4 springs in the stacked 2-3 shift page. Any thoughts or counterpoints?

If I follow this tack, do the upper and lower valve body have to come apart?

Sixto
87 300D