please, make sure that your male dogs have a certain amount of time that they are not wearing the wraps. having something wet against their skin can cause the same problems as a baby will get from wearing a wet diaper too long.i have used wraps for old dogs that had lost bladder control and keeping them dry and clean was very important.
You should try training correctly. A male restrictive band (which has been around for quite some time now) will not teach them anything. I think they should just be used for incontinent dogs or dogs with another medical condition with advise from a vet!
"The dog has seldom been successful in pulling man up to his level of sagacity, but man has frequently dragged the dog down to his."
I invented a dog-neck-holder, you can attach "leashes" or what I like to call them, rope like restraint. Everyone here should get one. Please don't PM me though. I'm all sold out. All both of them were sold yesterday...