keeping in mind this pulley ONLY powers the power steering and the air con, so its not like changing a pulley that would move the timing belt or anyhting (as the fit\jazz has a seperate CHAIN)
I plan to be changing to the Mythelogy pulley.
Mythelogy pulley image by rayfoo on Photobucket
Its Semi-Dampened. I sent them a couple of emails and was satisfied with their explainations. The rubber ring will absord a fair ammount of the vibration, but because the rear is solid, significantly less then the stock one.
the up sides?
1. lighter
2. Less vibration than solid
3. Faster acceleration
4. rubber wont wear out as quickly.
If it wasnt balanced, it could be a LITTLE more risky, however there are a few members here running FULL SOLID pulleys for a long time, and they have NO issues, so semi-dampened should be good.