I RMAed one about 8 years ago for a broken hat, and they gave me a brand new stick. Actually both RMA's I have had with CH resulted in me getting brand new equipment.
(Although one of them was after they shipped my equipment to some lady in New Jersey)
If it happened now I'd probably buy the spare parts of their site and try to fix it, because shipping isn't cheap, and I'm too impatient to wait for the RMA process to be completed.