Rebuilt 904 w/ tf2 shifting woes...

I am running an identical setup with the exception of mine has a 4000 rpm governor from A&A .
I can get my 1-2 shift crisp but my 2-3 always seems lazy. If I go too far it wants to downshift into first as I slow down. I have chased this thing around for 2 yrs trying to get it right . I am thinking it may be and internal adjustment. I need to check my pressures...
In auto-shift mode, it is a combination of roadspeed, and the 2-3 shift spring; I had to swap mine out for something else too.
In manual shift mode, the accumulator seems to cushion the 2-3 shift. Since for me, I didn't care about going into third gear, and preferred the cushioned shift, I left in there what I found. Eventually, I found a slightly stiffer spring and swapped it in, voila.
I also ran into the too early 2-1 downshift, which I cured with less governor pressure. Yur right, that's a fine-line. I reprogrammed myself to manually shift the thing, when at WOT.
But for my driving style, I lucked into an adjustment that auto-downshifts 2-1 with just the right amount of throttle input, so that I can get nice show-off powerslides in mid-turn,lol. That's a sight to behold!
Imagine;
coming to a turn, on the brakes, easing up while entering, to just before it auto-downshifts, then easing into the throttle, then the PT KD whams it into low, the rpm scoots up, I floor it and the secondaries come on line, and POW! just like that we are sideways, the little 318 howling the TQ-moan..all done by the rightfoot, and the 2800TC.
That was my winter engine for 5 or 6 years until my son made me an offer I couldn't refuse. Some eight years or so later, the truck we put it into was junk, so I got the powertrain back. Sadly, I have no use for it anymore.