Dave-
As I remember, back in the "good old days", when G-cats were new and there were some around racing I saw a number with double traps. There is one at our club but I've never seen it out sailing. I could check and see how many traps it has or if there are any Class rules around and they allow double traps then you'd be safe for sure. Also, a number of Supercats and the old Sol Cats didn't have spreaders but were double trap boats.

Kirt