My opinion is worth a fart in a whirlwind, so here goes.
Yellow-curdom doesn't need any more no hunting yellow curs in it, the peanut gallery keeps the world stocked with over gritty no hunting yeller dogs as is.
There are well behaved, trustworthy bulldogs who don't pull, don't whine, and can do anything you'll accomplish with this experiment (maybe better

) already in existence.
For the life of me I don't understand what anyone would want with cur dogs of any color that don't hunt? Too many of those already.