I just test drove a new 2007 Tacoma with manual 6-speed. Fun truck EXCEPT when shifting at casual speeds, the revs would not come down quickly enough to execute a nice smooth shift. Yes, yes I know it's part of the emissions sytem, but honestly, this would keep me from buying one. I actually think it is partially to blame for the sticky shifting I've read about in the forums. Are there any answers available from the aftermarket?