Im wondering if anyone has ever experienced this before.

You are in 2nd gear

(possibly 3rd), revs in the power band and exiting a corner.

You lightly

(or more agressively) touch the throttle on the exit of the corner and the car jerks backwards and forwards like it is shuffling along the road.

On a recent trackday at Oulton Park i noticed this effect dramatically when i was exiting the banked hairpin.

Im curious if its happened to anyone else? If you have, do you have a lightened flywheel?