When I searched for these topics not much came up. I thought I'd post this up for posterity.

What: Spec light weight flywheel and stage 2 clutch.
Why: Because you can't help yourself.

The flywheel is aluminum with a replaceable steel friction insert. I didn't weigh it, but it is somewhere betweeen 12.5 and 14.5 pounds. The clutch disc is segmented kevlar with sprung hub. Although people complain about the spec wheel bearing, mine works fine and had the same part number on it as stock. Same with the pressure plate, but I don't know if it is modified for more force by spec.


cons:
-Gear noise (chatter) when lugged at low rpm.
-Gear noise (whining) when engine braking at rpm's higher than 4500.
-More attention needed when taking up drive. Part from the light flywheel and part from the segmented disc (a little bit of chatter if you are not smooth) an organic disc should make this better.
-Cruising in 6th at low rpm may require more throttle fluctuation to maintain speed.
-Late peddle engagement. This is because the disc is thinner than stock.

Pros:
-The car seems very smooth and light.
-Accelleration in 1st through 3rd is noticabley quicker. Like having shorter gearing, but you get to keep the max mph per gear.
-Braking seems better
-Very easy to rev match and more forgiving when you don't.
-Less back lash getting on and off the gas.
-Easier shifting, could be the redline oil.
-Exhaust sounds more "tuned". Maybe from less load?


would I do it over again? It will take more time to say. This is certainly not a bumper to bumper traffic set up. The only beef I had with the stock set up was the dull feeling of the engine and the bad clutch slave. The only beef I have with the new set up is getting moving from a stop when I'm not in the mood.

I'll update this if something else comes to me.