What is the format for the crews race please. Can a crew sail with another crew this year?

NO NO NO NO NO!
Your helm has to crew for you. 
They are your handicap.
Substituting for an able body = cheating and you will have to do a 720000000000 degree turn.
Case closed.

pip, have you ever tried sailing with mr k. nackered? it's a flipping nightmare. you should all have to do a 984 degree turn just to level the playing field. love fran (from my phone hence no capitals)