Chris, I think there are hunters that take their time when choosing their breedings....18 months to 3 years between breedings unless they get in a bind. I personally think a big factor in breeding woods dogs (strike or catch) is not knowing how long they are gonna be on this earth. That could be a reason for breeding more frequently...
Scott,
A couple of good points. I agree that there are hog dog breeders that are taking the time when choosing their breedings, I would also have to say that they are the exception, not the rule. As for the frequency of breeding, I agree too. The dogs I run are VERY loose baying, so I have been fortunate to this point that they are long lived, and I don't need to replace them as often as some might that are running real rough dogs. I also only hunt about 100 times a year(average twice a week) so I don't need 20 dogs on my place like some, I can get by with just a handful. If I have a new prospect every couple years, then I should be good, barring anything unforeseen happening.
For someone breeding catch dogs, I can certainly appreciate the need to breed with more frequency.