It works for me. I printed in PLA... There are multiple revisions of AMS at this point, because Bambu Lab keeps changing it, it's impossible to cater to everyone because I don't have all the AMS revisions here. If Technology Outlet received lots of complaints they'd probably stop trying to sell carboard spools, it's weird how they sell Bambu Lab printers now but they don't sell refills compatible with BL reusable spools. They should do that...

What half works? My design works 100% of the time. I have been using my design ever since they launched their stupid cardboard spools and it works flawlessly. Their design does not work. You can't have AMS without rewinding, it will error out. It's basically a black and white situation - you can't either have 100% or 0%. The AMS doesn't work just with feeding, it has to pull back and rewind too. You can't close the lid on the AMS, it's too big, even without any adaptors, with my adaptor the lid will rest on its rim and it will still work, but it won't seal as if the lid was fully closed