I’ve owned my Carbon with AMS for two months now. I use mostly Overture filament. And I tried a wide variety of rim adapters and other things and I can’t get the AMS to reliably rewind the spool when changing filament. Probably 1 out of 5 spools rewind at a pace too slow for how the filament is sent to the AMS and it turns into a big hairball in the AMS. If I leave the AMS lid not closed, that’s when I have the most success. I expected using all Bambu spools would alleviate the problem but maybe not based on the original post. Regardless of all that, I still love the AMS. The 4 times that it works right is still 4 manual spool changes I’m not doing that I would on my Anycubic. I’m thinking of giving that Hydra unit a try.