Original MY99 clutches did shudder from new, its not uncommon...they went and fitted a different flywheel with a dampening plate in them from MY02 onwards to help lessen the shudder. My Tony Flood supplied and fitted clutch has no shudder from cold... as you would expect from a mechanic that knows Subaru's as well as Tony.
Lightened flywheels can make a good difference, here's one that has been to Jenny Craig's
