Gary and Mark P. I agree with both of you re. sailing solo vs. two up, but the one single place I find I lose the most distance/time to a two up team is at C mark during a take down in a good breeze.

Many times I have come into C mark beside the two ups (F16's and F18's, I-20's, etc) only to take a longer time in the transition to upwind sailing than they, and all the while, nobody is steering my boat, as my hands are busy with the snuff, putting the boards down, pulling the rotator back in, setting the downhaul again, getting back out on the wire, etc.

I can go in equal with them but usually come out behind them, then have to tack away to get clear air, then tack back. So at a minimum it costs me two tacks more than they, unless they muff the snuff too. I usually opt to slow down and go outside of them, in case I have problems so I don't hit them, or get hit, that costs more distance too.

This is the thing that the math only type ratings don't take into account.