Hershey still has LOTS of hair, surprisingly enough. I was just amazed at how much it got off of him! He hasn't meowed or anything; they both seem to like it. Maybe it bothered Baxter because he was so bony or maybe it hit a tangle in his long hair? I know there are different sizes, depending on the size of the cat and length of their hair. You might want to give it another shot, Jenn. I'm hoping it helps with hairballs. I just can't imagine they'd have ingested all that hair - cough - cough - gag - gag!!
Heather - I did find (especially initially) that there was a lot of loose hair after brushing with it. Someone (can't remember who) suggested using a regular slicker brush afterwards just to catch the loose hair. But, using it regularly, we don't seem to have that problem as much anymore. Hope it works for you!