Joe, you hit the nail on the head. That's exactly what I am wondering. Are people indeed putting big sails on a go and having any success with it? And is there a difference in the models?
For me performance is secondary, I just want a fun board for the summer days when the winds aren't super strong. I'm all set for the fall storms with a Mistral Screamer. Was considering a Formula Experience or large Futura, but as you said the play value wouldn't be there.
So still looking for any experience on a Go in the 10-11m range.