In this case I'm not sure the jury would give special consideration to a solo under spin. It could be argued that if you can't get the boat around as another boat/team on the course then you've f'd up. I would expect a solo under spin to get the same consideration as any other boat on the course, nothing more nothing less.
I think you are right.. and you could argue time lost and the inherent difficulty in doing it solo is accounted for by the DPN. (however, this gets dicey when thinking about the fact that there is only one number for the F16)
the whole scenario makes me nervous sailing solo though because sailign solo with the spin, you really have to have your sh-- together to not cause significant issue with the other boats.
