Dogs and vests

I run cut collars on all my dogs. I had a few vests a couple months back that I let a friend "test" on his pure bull and while I liked the protection it offered I noticed the dog having a loss of mobility which I feel was putting them in the position to take the blow in the first place. I also noticed the dogs that wore the vests became alot more confident and in the end roostery with their grabbing bigger pigs. I had planned to get a Garmin and sold my vests but if I hadn't I would probably vest up a straight catchdog if we were running in open grounds Pasture or Golf course. I went on a hunt last night that a vest could have saved my cousins dog alot of fluids so I definately do understand the guys who won't drop a dog without a vest on.

Wrote on wrong thread but O well heres my .02