I just got the 2004 Giant NRS 3 and love it! The only short coming I could find is the Rock Shox Pilot front shock. I would like to upgrade to a Fox shock but am not sure if I should go from the factory 80mm shock to a 100mm or go for the adjustable Talas that goes from 90mm to 130mm. Does anyone have any experience with upgrading the shock on this bike?