I just need to find the ones that I admire the most then learn how to condition them properly. I believe I've seen some already, they are called grades or Japs. It could be that there are families already doing exactly this without any performance inhancement aids. For me I really don't want them to explode, I just want them to show with both offensive and defensive ability when needed with the total desire to destroy the opponent as quickly as possible and be totally game to the core. Now one may say feed them some good old fashion dyn-o-mite and watch them explode in the pit. If you can't win, then you have the wrong type of fowl and may need to infuse or totally try a different type of bloodline.
Only the owner/conditioner would know if it made a difference. Dr Blues Compound 40 B15 Nite Owl Method. The Art of Pointing Fowl| Dr Blues Book – Limited Copy. Right or wrong or whether certain conditioning aids are required to get the W's on the scoreboard, it is up to the owner. My roosters are mine and I can feed them and/or inject them with whatever I desire. Your roosters are yours to do whatever you please with.