My mast broke as a result of metal fatique at the top of the hound bracket. That is the part of the mast that takes the most flex cycle abuse since the entire upper portion of the mast (above the hound) is unsupported. I truly believe that this is the start of what will be a trend since the advent of adding square top main sails and spinnakers to beachcats. I believe there will me many metal masts breaking at the hound.
The minimal "rocker" (amount of curvature, fore to aft at the keel line) makes the boat somewhat of a stern drager, tail drager. So you have to move very far forward to get her to sail upwind properly; good thing that she has extremely tall bows to allow for this. Once she's properly situated with bows depressed, she'll track straight and steady for 40 miles upwind and will hoby-horse rarely if ever at all.
Ask Rick says, this all makes her a bear to make a sudden 90ยบ turn without loosing lots of speed.
I've been fighting with rudder problems from the first day I took possesion of her. Sometimes when I do a test-kick it looks like my transom is going to leave the boat. Many times I've had kick ups while doing 17 knots downwind; always frustating.
If I were to give the Mystere 6.0 a name (just as there is a Hobie named Fox, or Tiger), it would be "The Mystere Hyena."
The Hyena is bone crushing strong with a dragging, vulnerable tail.
GARY