The thought crossed my mind. The allen key holding it is still there, so I expect it is. I was wondering wether it has some type of sheet wrapped substance wrapped around the the baffle like the old two strokes used to have. I'll take it out over the weekend and have a proper look.

My bike at Ace on Sunday.
http://i1311.photobucket.com/albums/...psbj0kznlb.jpg

Looks like a nice wee meet up. Cheers for the piccies