I'd get a little more weight on the Banana Fire Enchi and go with him for this coming season with your YB female. Not sure if you are doing temperature cycling, but if you are, there is a good chance he will put on a good chunk of weight and size by the time it's appropriate to start pairing. If you can manage to hit a female Fire Enchi YB, that would make a great future mate for your Asphalt/YB. Banana combo would be even better if you have a female maker by chance.