Unfortunately, the trigger wears out where the roll pin fits, and the Tasker replacement part was not well made and is now NLA. I had purchased it back in 2009 to repair my worn out one. Fortunately I was able to repair mine with a little work and parts of both original and poorly made replacement. I posted a review to the part.
Pelican Parts - Product Information: PEL-TMP-TRIG-C