Hong fu riders, did you buy direct from the company or via a third party like eBay / Aliexpress?
They are all just resellers so go with one you trust to not be flogging a batch of failed QC frames 😉 Honfu, Honsen, XmiPlay, XMcarbonspeed, Carbonality all seem well regarded. Flyxii usually seem the cheapest. Price and stock varies from vendor to vendor so it’s a case too of balancing cost with actually being able to get what you want. Personally, I’d insist on a BSA BB and not want to pay more than $500-550 for the 256-sl. The 057 is another similar geo frame that is maybe 250g heavier but under $400. There seem to be very few issues online with either the 256 and 057. Think Ant White might have been on a 057 (certainly 2x Chinese 29ers) for his 2nd place at the World 24 hour champs so they can’t be *that* bad 😆