So I’ve seen a lot of people get carbon fiber bottles for their FX Dreamline Compacts. It seems like the company everyone is getting them from is liaoning alsafe technology co. ltd from eBay. My question is are they safe? It seems like they have the FX threads but does it stop leaking air after being unscrewed like the original FX bottles? (Asking 2 separate questions) I want to get one but a lot of Chinese items have questionable reputations. Which it seems like that’s where these bottles are manufactured. Should I save my Time and money? Or take a chance? Anyone with input please chime in.