Looks quite neat.
Only thing I'm curious about is the extra load on the gimbal. Does it seem to put a lot of extra weight/strain on the motors?
Would love to try them out, however if this means I'll burn out my gimbal motors I think I'll pass...
(Unfortunately can't find a supplier that will ship me the Neewer filters to The Netherlands though.)
Weight is minimal. No effect on gimbal that I noticed.