you got magnets that are strong enough i figure you'd increase the weight of the hopper. not by much but still noticeable probably. its an interesting concept. my friend has the same issue with wanted to switch. it might work, magnas and some halos used magnets to keep the lids down but were pretty weak. definitely worth a shot if you had a spare rotor shell laying around
Paintball changed for me twice in my life, when a close friend introduced me to pump play and cockers and when I went from woodsball with Tippmanns to tournament ball with my Bob Long Rapper and AKA Viking on the UW-Stout Team. I'm a better player thanks to both occurrences.