I do like the crack and pop on over run/decelaration but mine became more prominent with some quite loud bangs, at low revs whilst getting through traffic it also began stuttering, not really bad though and occasional airbox farts, "they all do it" well mine is a lady and if she has then she's been hiding it well.
I thought i'd look at the balancing "fingers crossed" but it's not been long since they were balanced at Tony's.

Got my gear together pulled out the take offs and was very pleased to find the take off blocking screw had dissapeared from the front cylinder, new blocking screw inserted and she's back to normal.

Hopefully this snippet might help someone else.