Les, I have been reading this thread with great interest. I like your style
How many tanks have you got dedicated to guppies? I am thinking of developing a strain of my own, but can't decide what I want (can't even decide on colour)
Matt, guppies with HM spread aren't new (possibly lost and re-discovered.) I remember as a kid in the 80's, seeing some amazing guppies in certain pet stores. They had some of the widest caudals I have seen to date.