I just received my finis competitor monofin. I have a size 13EE shoe size. The monofin I ordered was double extra large supposed to fit up to size 15 but my feet are too wide, not even close. Returning them next week. I'm planning a trip to La Paz to free dive with whale sharks. Not my first time and I know you need to haul assss to keep up with them. I plan on doing some GoPro video. I'm a strong swimmer and was a 200 butterflyer in college. I'm hoping to get some recommendations for specific model and size for my freak wide feet haha. Thanks in advance. I posted this in the equipment Forum section under fins snorkels... no response there