Why use RCD's?

I've owned a RCD that would stay with the pack and catch any hog but got help from the other two dogs I hunted him with. I hunted the same three dogs together all the time. They had caught several hogs way out and held those hogs for 30-45 minutes with minimal cuts. A 200lb hog with about an 1 1/2 teeth took him out when he was 8 years old less than a 100yds from me. He was caught on one ear and one of the other dogs were caught on the other. The other dog didn't have a scratch. Luck of the draw. He caught many hogs in his lifetime. I only have one of the three left and she is 8 now. I didn't have alot of bays but caught more hogs with those three then anything I hunt now. I know there are some running hogs in everyones backyard and alot of variables. The hogs I hunt are few and far between. The hogs are more of a european strain and run. If a dog barks they are off to the races. He had what I would call technique he didn't run in like a linebacker and slam the hog but would just catch the hog. If you put him in a pen he would just go in at a steady pace and grab the hog. When he caught he would not stay out in front of the hog but turn his body next to the hog. He is sorely missed.

I think they have their place in the right situations and terrain. It all depends on personal preference and what works for you. The term RCD I think has several definitions. I have not been able to find a replacement for him. Just my experience.