Your bike looks great :D
Here are some photo's of mine. Yes, it's dark, it's winter and it's a daily ride so there's leaves, mud and allsorts stuck too it :P
As you can see, the strap on mine is a lot further back, my plate is a lot bigger than the US, and the strap is quite thin.
I'm concerned that firstly the strap will break, but even if it didn't, with the size of my (illegal and much smaller plate), it will hit the rear wheel easily.
I wish I lived in the US lol.
There is not much adjustability....I think the only solution is too fit a second mount somehow, nearer the end of the can, but I'm not sure how to do this, other than captive nuts like the tripage stock exhaust fitment...I don't want too drill my new can though..
//edit ... of course I still have the evotech tail tidy fitted awaiting the tripage.. that will be gone when and if I can mount the plate :)