I was rebuilding engines and gearboxes in my first year, the good part of being an apprentice in a small workshop. Yep clutches is actually taught in the second year tafe module. So yer they do teach that in as a 2nd year apprentice.
From my veiw, exedy is ok for an off the shelf application, i got one in mine thats lasted 3 years so far, i wasn't too happy with its clamping force so i had that beefed up by jim berry, its got a really nice feel to it now, not a weak stock feel. But i have driven smity42's clutch that jim made and its a great clutch doesn't slip and feels really nice on the pickup.
Also a jim berry clutch will last about 2 times longer in a ferrari than the standard one will.
My next clutch will probably be an OS or something like that.
Exedy do make a nice lightweight flywheel though