[mwlmd]

I just looked up the lowering specs of the KW sleeve kit for the E9x M3 to compare. The max drop with that kit is 1.2"F 0.5"R

The E9x H&R sport springs drop is: 1.0"F 0.6"R

So it appears the H&R springs drop more in rear and less in front. This is surprising.

The F10M5 H&R springs drop the car 1.0"F and 0.6"R

not sure yet what the KW sleeve kit specs will be for the F10M5.

I found the answers to my above questions on the KW site. Sleeve kit allows ride height adjustment without interfering with EDC. Sounds ideal if the max drop is enough to get the look we want!