yes, filing works OK but it takes patience I don't have. it's easier to file enough off the 24mm than 18mm; with a smaller radius the 18mm ejection caps are closer to the end of the clip.
depending on pliers you have and access in to the MMT, you might try just bending over the tab. that's not as good as filing.
maybe the best thing is to plan ahead when building and either use a grinder to take material off the hook, or omit the hook entirely and just use tape.