i think the only issue with this is there not a uprated spring rate so cutting a coil off and putting them on wont do any harm (you have to cut it at the same point where the spring stops) but the ride will be as sloppy as having the stock springs in, there is a chance then that the shocks will bottom out.
i dont think the micra k10 or k11 has a progressive spring rate so it wont matter cutting 1 coil off, if its just a stop gap untill you get proper uprated springs id say do it
does anyone know the standard spring rate - i think ive asked this before lol