Str8 outta Cliff

I'm just wondering if anyone knows the original disc thickness on a Competition stage 4 B-series clutch? Or has one they can measure? I recently pulled my motor out for a rebuild and the clutch and flywheel look decent but the disc seem to be getting kinda thin? I remember it wasn't super thick even when new but I didn't take any measurements so idk how much the wear is.

Setup isn't anything crazy ~300whp and only maybe 6500miles or so but does have a good number of launches on slicks preloading at the track etc so it could just be normal wear and tear but was hoping so finish off the summer on the clutch if I can get away with it.