Ability to use Spool Holder mid-print when AMS run out?

[MalcTheOracle]

I believe this is of what you speak.

SUNLU Filament Connector, Fusion Splicer | SUNLU Online Store

And the post (I think)

Sunlu filament fuser/connector. Gadget, tool or gimmick?

If you have an AMS you don’t need a filament splicer, just load your end bits onto the 4 filament holders and have the AMS do fail over so that when one filament runs out the next is loaded.