If my 727 shifts too soon, and too soft, which way do I adjust?

TrailBeast said
If you make the rod shorter at the trans it will put you right back where you started, only you will have made the rod incapable of ever being adjusted right.
If the TP linkage is all the way to it's full travel and your shifts are still too soft and early something else is wrong.
Do you have access to a gauge to put on that thing so you can pressure test it?

Makes sense. But no gauges for testing here. I first will try making the rod a thread or two longer and see how it shifts. If it works, then I'll look at the WOT issue. (I'm pretty sure it's just an adjustment, everything used to work fine until I took the AVS carb off and put the Holley on, and of course had to monkey with the linkage)