Poor-shifting with new phoenix

[grec-o-face]

I have a few issues regarding my new Phoenix.

I've noticed the shifts to be inconsistent in pressure/firmness. Sometimes they feel good, clean crisp up-shifts. Other times they are just mushy, and soft with very little "positive" feel. It's almost like I have to hit a "sweet-spot" with throttle position and load to have it shift decently.

The tow tune seems OK. (though I haven't pulled heavy with it yet)
The 80DD is hit-or-miss.
The Perf. tune is really bad... very mushy.
TC lock-up feels fine. Temps have been the same as they always have.

With stock programming (read; NO Chip installed) they are consistent, and feel pretty decent. With my last tuner (different vendor) they were also crisp and firm.

What can cause this? Is my PCM code known for crap-shifts?

2001 F250
4R100 rebuilt to stock specs nearly 10k ago.
PCM Code: PMT2

Thanks
-Aaron



Otherwise, I like the chip. I do plan on sending it back in to have different tunes burned (I want to add "no start" and move the positions a bit).