Hi.
I had the same problem with a new 109 tilt from Exmore. I phoned them and they advised me to pull the end straps as tight as passible. I did this over a few weeks and kept it wet. Sorted the problem and now fits perfect.
Chris.
I think you're right, a series one tilt is slightly widerhi chris. ok ta. i will try that im not sure that a series 1 tilt will even fit a s2
chris