Ive had my BambuLab P1S for about a week and have been printing numerous mods to help it work more efficiently. I installed an AMS Saver mod, which is feed tubes to prevent the filament from unraveling in the AMS and getting tangled. Once I installed this, I had a very difficult time pushing the filament feed button to load filament since I am missing one of my hands. I designed this to give more leverage and surface area and I can easily load filament with my nub. Plus no more sore fingers!!!