Renrew, has your experience with the 2017 jetting been bad? A couple of my mates (experienced "Roof Level" riders) have them, and they are happy, subsequent to re-jetting.
For the record, I have a 2016, so my question is just out of curiosity.
Good luck to all this year's participants. 2017 was supposed to be my year for a Silver attempt, but my relocation to the WC, and the lack of riding opportunities (read - lack of training) has tossed that notion out the window. Next year I'll be 49, so my window is closing...