Get a lighter aftermarket flywheel
Haha in all seriousness, i've never experienced a time where the blip in rev's has gone past redline, so I dont think there is really anything to worry about. If you want to try to eliminate the flywheel as the culprit, do this...
1. Floor it up to 5k, foot off gas, and rapidly push in clutch.
2. Floor it up to 5k, foot off gas, and very gently push in clutch.
If the RPMs blip high for #1, but dont do anything for #2, then its likely the flywheel.