Low mount cut in a CZ slide is super nice we have done a lot of with Pro Tek series , SDP series and other builds.
your specs show a Dawson. 280 high front which is pretty tall.
when we mill for the Low mount, we usually run a 6.0-6.5mm tall front which is about a Dawson .195 tall front.
which would lower your rear sight elevation.
just a thought.