2G Autocross data log: So is this clutch slippage?

[ileagleracing]

So the only changes from last year is E85, car is tuned at 300 whp.
end of the second event noticed that the revs were spiking at 5000ish or so without any acceleration.
Clutch is South Bend Stage 3 installed with my TRE Trans last year, has 18 autocross events on them now.
Is this really clutch slippage? Or maybe some sort of tune issue?

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[pauleyman]

Can you highlight the time frame you think it's slipping? I can't tell from the pics. It looks like 20 to 22 sec area. I looked at rpm change at 21 to 22.7 sec and it's 4300 ish to 7200. In 2nd gear and 1.7 sec doesn't sound right. I'm honestly not sure. Slip feels like a free rev when I experienced it. Would expect redline alot quicker than 1.7?
Thoughts to the masses?

 

[ileagleracing]

the white rectangles in run 4 are where I feel it is "slipping"
took the car out for a spin today, couldn't duplicate the issue, but I can't really drive it in autocross conditions on the street.