Not a need per se (for me, right now), but did notice upgrades won't go down in the Precision Sawmill (one or a stack of upgrades just rests in the upper slot). It does say it supports energy and speed upgrades.

Mek.dev 8.0.2.565

Can't reproduce. You sure you don't already have the max amount of upgrades installed?

-facepalm- indeed! I had filled it before, and didn't notice that in my updating frenzy ;-)
Thanks! :-)

No worries :)