If i had to guess I would say it has something to do with different builds of Sense. If you're a fan of haptic feedback you are going to LOVE touchresponse. Gimme a minute and I'll have a link for ya hold on...
Give it a go:
http://forum.xda-developers.com/showthread.php?t=450256 very customizable, have a feeling it might be what you're looking for and a lot more.