I heard about the implants on a pet talk show from a guy who had a pit bull and "He felt the dog would be embarassed to be seen without his equipment"" He sounded like one of those Macho types . I have never heard of spaying or neutering causing weaked bladder,I had to convince my dad it would help prevent some cancers (after we had a dog become very ill with breast cancer).I have always had my dogs done (we did raise springers for hunting dogs but one litter could tell us if they would provide the genetics we wanted.We had all pups spoken for be for breeding and spent a year or more finding the best mates for our lines. Usually we bred so we could have a replacement for the parent of the pup.) I haven't seen any activity level in my merlin still makes the neighbor tired just watching him.