I've had three of each. I realize this isn't much of a sample. What's been your experience? All six of mine were good hunters but the blacks seemed to have a little more drive in the field and male or female were also more prone to fight. The yellows would defend themselves if necessary but none of the ones I had ever started a fight and had a pretty much live and let live attitude toward other dogs.

I read somewhere blacks have a lot more field trial championships but I don't know if this means they have more drive. I like both equally.