I've yet had no problems on my manual APR Stage 1 Ed 30.
Don't do traffic light GP or sprinting but have done a hard trackday and it coped admirably.
I've spoken to various tuners recently who all they the ED30 clutches are fine but depends how you drive...common sense then!
Revo have been running their demo with silly power and report no problems. Awesome report no issues with clutches either.
Will inspect mine when fitting diff.