Re: B32 Yawl
Alan: I have a Crealock 37 yawl. I fell for the yawl rig after doing some offshore sailing on a Hinckley 48 yawl. Mostly, putting up the mizzen is just for looks. It just looks great and it's part of owning a yawl. It's a yawl thing and makes you a yawl man.
It does give you some flexibility on sail combinations, like previously stated. In heavy winds you don't have to deal with the main just go jib and jigger. I will do hull speed on just jib and jigger. At anchor I will put the mizzen up when it is blowing and it acts as an anchor sail. When the winds are fresh a reefed headsail and main with the mizzen and the boat balances out beautifully.
But mostly it's a yawl thing!