The thing with kevlar is you can't feel it slip. When kevlar is new it does not hold it's rated TQ much like other clutches, It is just more particular about break in as it wears so long that it takes a lot of miles and use to get it to flatten out and seat in. As you can see it is only seated on the very outer part of the clutch disk. Once it levels off and begins to flatten out is when it will hold all of its rated TQ.
It will only slip a little and you just can't feel it unless you continue to do it then it will go away on you if you do it too much during break in.
I think the issue may be the spot on the flywheel where it looks to be raised up a bit from excessive heat.
The clutch will be checked over and put on a release/clamp load machine to see if everything is working properly. This checks pressure plate lift (release) and clamp load.
These are all checked before they go out as was this one to make sure they work before they go in the car, Something few companies do.
Most likely I will take care of you on this even if it is something you did unknowingly. I may just have you cover the ship on the new kit if we can't find a problem with the clutch itself other than the overheated part.
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