My point one more time... It has been my experience with dogs from the sport, service, and PP venues; many will at some point be equipment focused if the trainer gives them that chance. The barrel sleeve is great for large mouth, hard biting dogs. Most dogs do not like them, the same can be said for very stiff full body bite suits. The softer the material and the tighter the weave, the more engagement time your dog will have with it.
Success builds upon success. We use tugs, puppy sleeves, and hard trial sleeves for all of our dogs. However, we also use the softest sleeve with a neo-sleeve under it for OUR protection. When the dog understands proper targeting and bite compression, we transfer to the suit. When the dog is biting on a MOST real feel item, you can safely bet that they will have NO issue with bulky street, goose down filled clothes. Most modern bite suits are now designed to look like street wear, French Ring for one.
For those who have very little experience or none with this topic, opinions are always welcomed. I would however view some of them as folks who watch two K9 clips from the TV show "Cops." They see some trooper do a basic K9 deployment on the bad guy and NOW become experts on the subject. Erh...ah...not!