Hi Rocco,

Did your motor survive the 12 cell adventure?

When you run a big hull like yours on 12 cells, you need a 700 motor, or you will keep burning things up.

The Jeti 600 Navy is a good ESC, I don't know how much it costs in Italy.

You could also check out www.cti-aichtal.de and see how much the MIMIR esc would cost you, this 30V-50A should work fine in your set-up. (if I'm not mistaken 34,50 Euro's ex. shipping, order for your friends aswell, lower the shipping costs)
We (my son and I) run four or five of these ESC's in our various 12-14 cell boats, no problem.
I made them watercooled, as a precausion, but this is not really necessary.

Helmut Marchall from CTI is a nice guy, mail him and ask what his advice is.
The CTI service is excellent, if a ESC should fail (shi..happens), mail CTI, send it back and receive a new one, no questions asked.

Regards, Jan.