I've seen that. The rep at the cat vendor had some concerns about the process. He wanted me to follow up with him after I had it out and we could look at it. He didn't seem to be a fan of soaking and if soaking wanted to be very specific about how to do it. I'll post another thread after I go through it with him. At $250 a pop, I'm more than happy to be patient and listen to every detail to prevent damage.