YES..you are beginning to understand what I'm talking about. I can't tell whether this is a normal "flat-spot" that is accentuated because the car has so much more upper end power with the chip or the transmission is "slipping" on purpose or due to some problem. Also of concern is if the chip has a faulty "fuel-mapping" problem that is occurring although I doubt this. Just thought I would throw this problem out .... hoping someone who has installed the PAD chip might have noticed the same thing. I have noticed the same phenomena in an unchipped 94 E500 but not nearly the magnitude as in mine.