Nice try with the experiment. Nothing ventured, nothing gained. :thumbsup:

Could be that those with the bulge were closer to the fans, requiring stronger joint-strength at the nodes. Or it could be genetics. Or maybe those with the spare tire are just fat?..<kidding>

I'm willing to bet the 'short and bushy' males versus 'tall and skinny' females is genetically programmed, too. Seeing more and more of this lately. I wonder if some of the breeders have stopped back-crossing their strains to stabilize the traits?