Thanks for sharing! I like the idea of thinking of two tails, maybe I will redesign, my drafts asses are one wide and on narrow, with softer rails and I#m using two single fins.
2 single fin tails is fine. I like your design idea. If I ever do another one, I’ll pull the pig side tail in more and set the wide point about 4 to 5 inches off center. I struggled with myself to make a double ender, probably started on one 4 times but ended up making a normal nose board.
If I was going to do a double ender then I’d do it with a disk template. All curve.