Those are all misconceptions...
A good running catch dog is basically a catch dog, smart enough to be turned loose and not do some thing stupid. Catches like a catch dog but runs and handles like a strike dog.
THey can do both because they smart dogs with a good handle.
IF your "Running Catch Dog" backs out some times than it is just a gritty dog,,, not a Running Catch Dog.
Personally I try to find Running Catch Dogs, especially from guys who hunt horse back. They have an excellent handle, are smart, cool running dogs. They can always be lead in or kicked out a box... That is like a math mathematician going back and taking Algebra II.
Not saying to switch from catch dogs to running catch dogs, becuase running catch dogs are not good every where. BUT if you have running catch dogs you can use them both ways, if needed.
The dogs that yall are all talking about are junk.... but then alot of people keep regular catch dogs around that do that crap also.