As for righting, get Rick's book on cat sailing, the yellow one in his store on this site, has very good directions of exactly what to do to right your boat. You don't need a sea anchor, you have a mast and main to create drag and the tramp becomes your sail(pushes your hulls down wind). Biggest problem you will have is either an un sealed mast , or the wind pushing the hulls and tramp (your new sail) over the main and mast(your sea anchor). A good move is, upon capsize WITH THE MAST DIRECTLY DOWN WIND, to have your crew swim IMMEDIATELY to the tip o the mast and keep it from going down. The main and mast act like a scoop when directly down wind and the hulls can get blown over the top of them pretty quickly. You need to release the main sheet AND THE DOWNHAUL! FAST!! He swims the tip of the mast to the side. Which ever side it "wants" to go to. Which ever side he goes to, you are on the lower hull with the righting line in hand , and you move your weight to the opposite end of the boat to create drag to help the mast come around to downwind. Then right according to Ricks book. Get Ricks book!