I have a set of the Ada plates I would sell for 150 shipped if you are interested. They work great, I used them in a blaster 2 last year and this year I made custom plates to set the motor back farther. Stock, the b2 midshaft is about 8". Anyway, only minor scratching and I did grind a little part of one plate so I could remove the intake manifold while in the ski. Can't ship till Tuesday though.