I don't use the propshaft much. Did the repair in Feb 07. Used propshaft until mid Apr 07 when it was removed and placed in storage. Put it back early Nov 07 and off again Mar 08. Refitted a couple of weeks ago. Inspected the vibration damper at that time and concluded it was in perfect condition. I reckon it has clocked at least 12000 miles since it was repaired.
12,000 miles in 6 months, you get about a bit