Pepin,

The GP Sails mainsail has been developed by Grant and I espically for the Stealth tapered mast. Grant is UK based, a Cat sailor and a top bloke. I's suggest spending the money and going with a GP sail.

Are you planning to come to the Grafham Cat open on the 18th and 19th Oct. I'll be there as will others with GP mainsails if you want to have a proper look.

Cheers

Simon.