An interesting thing I noticed with our three that have them....

Noel & Noah were done by the vet and they've only lost one or two! Basie has lost all but three!! I have to wonder if there is a special technique I'm just not getting.

Ours are working great! The main reason we wanted them was for the apartment carpet. It isn't ours and Noel is a digger, we can't have her destroy something we don't own. Noah got them because they all were going to get them, we wanted to be fair. Basie got them because he has razor-sharp claws and my legs are constantly getting bloody when he jumps up on me every time I sit down.

I'm going to have them put on Olivia, but not Micah. I don't want to traumatize him, he isn't a mellow cat like our others.

I HAVE noticed the gap you are talking about on Basie, but it doesn't seem to be a problem for him. I have no idea why, he's a playful critter...I'll be watching for that though, Jen. Thanks for the heads up.