I have thought about a set of Acer ceramics, but I have read good and bad things about them. Some said the seals fall out, and some said Acer told them to clean out the grease to get them to free up. I don't think so for $100.
So I thought I would go with AE bearings since I know they are good. I would like a good teflon sealded bearing like AE's but in a high quality ceramic. I don't know of any company that sells them yet. Any suggestions? Are the Niftech teflon sealed any good? I want something with a good seal for carpet racing. I can always degrease them.