hesitation

Well, after I bought my Insight, I was getting used to it's hybrid power-train compared to my Prius I had traded in. It was a little jerky, and always hesitates when taking off, but I recently took it to the dealer after reading some posts on here that said there was an update for the CVT. I...

what might cause engine to - only recently - hesitate and "cought" a bit when hitting accelerator at 25-35 mph? For past 2k miles or so - coincidentally, as my wife has become primary driver for her local commute - my 2001 MT with 95k miles has "hesitated" when accelerating from cruising in...