Tranny question

[tpearia]

Just got my FU installed on my truck, and I noticed, especially with some of the more aggressive tunes, when shifting the tranny seems to sort of slide down in the rpms a bit before hitting the next gear quite hard.

I was wondering if this is just sort of how these trucks react to an aggressive tune, like maybe part of the tune, or if its just a product of a tired tranny.

Thanks for any input!