Actually, under the new rules, every boat legal in any organization's SVL class can be made legal for OPA/APBA/OSS fairly easily (and at a pretty reasonable cost). Doc probably already has every part he needs. I'll get something up on the actual rules as they were completed, but in a nutshell, an SBI legal competitive boat would end up making these few changes;
1.5 ratio drive if they were running the 1.65
Prop diameter no larger than 15 5/8
Prop pitch no greater than 30"
Drive height rule is the same, 1/2" below aft running surface
Stock ECM not to exceed 5450 RPM
Add 250 lbs if the boat had not passed inspection by APBA/OSS/OPA
Add 250 lbs if it were an unsealed motor
Add 250 lbs if it were a multi-step design
I think that's about it if it had already been whistled, P&G'd, and sealed by SBI, or any other acredited race organization other than the normal inspection required of any boat at an event.
I started a thread, here's the link, so this work one won't get all messed up on rules discussions if that happens.....
http://www.seriousoffshore.com/foru...on-Clause-in-APBA-OSS-OPA&p=582594#post582594