Ricster,
you will find pleny of folks here have upgraded the rear shock and front end including myself but not necessarilly with a Wilburs unit or fork springs.
On my '04 955 Sprint I have had my Showa stock rear shock completely rebuilt by an Australian Motorcycle suspension specialist including revalving etc.
At the front I run 10wt oil with greater volume.
This set up cost me very little and provides amazing handling compared to the stock set up.
DaveM
