Hey, Lee.....have you had any binding issues with the micro buttons/rail? I tried them when they were first available and was disappointed because of the binding - and haven't tried them again. The shank that rides in the groove is long enough that the flanges don't keep it from angling and binding. So unless the rocket is hanging directly downwind (so that the wind keeps the buttons perpendicular to the plane of the rail face) performance really suffers. Or at least that was my experience. Your picture suggests that is still the case just from the proportions.

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Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE