Real nice peice and no vibrations, that's great to hear, was thinking of this mod too.
I have been told by driveline guys that if it is smooth at slower speeds, the odds that it vibrate at higher speeds in very low, when I had mine balanced, they spun it up to 3500 rpms, don't know what that translates into mph's.
I just ordered a clutch and fidanza. Got the clutch from a guy that said it WOULDN'T chatter and WOULDN'T slip at around 450 ftlbs. New cost me 425.00 shipped. Don't want to start a flame war so I will keep the source to myself until I see the results, then I will post, good or bad. Can't see why mkIII clutches command such a high price. Decided to pioneer up a different avenue and use one that I have read no feedback on here. Anyway should be here next week, how soon do you need a clutch?
Another thing I wanted to mention was that I have read that the al ds and lightened fw don't really work very well together. I don't know from personal experience but would be interested in following your progress if you decide to go with a lightened fw.
Wayne