Laser: True grayscale instead of dithering?

@Hauke

Hopefully I will receive my SnapMaker 2.0 and will be able to test some of this myself in the near future.

I had a question about the gcode you provided. When setting power, I notice you are setting both the P and S values (a percentage 0-100, and an 8-bit 0-255).

M3 P31 S79

Are both needed? Or is one sufficient?

e.g:
M3 S127 ; ~50% power (8-bit scale)
M3 P31 ; 31% power

I pulled the g-code reference from this post:

Thanks!

ODINITE