Apparently, Jim is making up everything and he thinks his boat is running/turning great, but he is misleading everyone to believe its spinning out all over the course. You have gone so far as to bring extreme concerns to others in the class.
I have been forwarded a link to video on how his boat REALLY turns

, but its been since removed or else I would post it.
Yes, Jim, you might think your boat is turning well, but as I stated before, it never has turned well and I don't believe it ever will.
For the sake of safety of all who are racing along side you - I hope you do not pull any further stunts.