Yeah, I'd imagine Nissan would have a fighting shot to deny warranty on a transmission failure if the car had an aftermarket clutch, flywheel etc. They could say the car was designed for a heavier flywheel - although I believe there is a nismo version now too?? or maybe it was nissan motorsport...

any event, yes, we did bleed the clutch after install... we also installed an adjustable clutch cable - for sale on this board

As an aside, The JWT unit is 1200 kg pressure plate vs 880 kg stock.

JWT is neutral on the aftermarket throwout bearing. They state their unit is designed to work with the stock throwout bearing and hydraulics and have people using their unit on 600 whp cars without problems.