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.
X3
Personally I wouldn't trust just currs for a cd, had a buddy that had a straight catch curr but called me one night and when I answered she was baying her butt off in the background and I took my cd and got em caught, (story and pics on here from way back when) now granted that was the only time that happened, it still happened. Had many experiences like that, only that once with that certain dog but others though that had cur cds... Not knocking anyone just personal preference and experiences I love my pit by my side