I haven't really noticed it as much on my Malibu as I dont really 'get into it' very often as I have two other cars to do that in....but in my 02 Silverado HD it was REALLY bad - so I put in a Westers 89/93 tune and it really woke the 6.0l up - I could only imagine a good tuner could make our 3.6 more crisp and not have some much lag between shifts.