Give each load a series of 5 shot tests see what she does, I don't see a need to tweak.

For the top one that may indicates a COAL change would help but need more evidence of the trend.

I agree it looks good.

I shoot 5 shots now, but 3 is a good indicator of where to stop and focus on.

Shooter mechanics are going to be more variable if those two hold and could well be the top one.