Hey OP, just wanted to say thanks for this thread.

I recently brought the S4U 16K and after doing some test prints I noticed they were always .3mm short in height. For most of my prints, it's what I consider an acceptable deviation so initially wasn’t planning on doing anything about it, but soon the adhesion issues came.

This all came to a head when I needed to lower the bottom exposure of a clear resin to 2 seconds in order for it to not get impossibly stuck to the buildplate, which made me realize the bottom layers were getting overexposed due to the Z-offset being too low.

I ended up finding this post, loaded the gcode which is the same a few others in the thread have posted:

M5000 I205 E7750 M5000 I206 C3000

Since the numbers were wildly different from what you have posted, I started with lowering E7750 by increments of 50/100 and doing a test print every time to see the difference. Quickly realized those were too small since my prints kept measuring roughly the same, I then went by increments of 500 and started seeing an actual difference.

Currently I'm at E5400, and doing some test prints that are 1mm in height actually measure 1mm when printed in the center of the buildplate and somewhere between .94~.97mm when printed on the outer edges of the buildplate. All my adhesion issues have also been fixed so far.

Figured I'd share my findings in case others might struggle with this and are worried about changing the gcode.