So we are preparing for a testflight, but due to regulations we are not allowed to fly above 5k ft. The M2400 needs 3 grains fully loaded, but we will overshoot quite significantly, so I thought maybe just remove 1 of the grains and insert a placeholder (a metal cylinder or smth, the change in stability due to the shift of CG is not concerning). Has anyone done something similar? Does it even make sense to do so?