I finally managed to OC my GTX1060 (with one wobbly fan) running on ubuntu 17.10 and can now report a slight increase in performance, but additional power draw.

So before any over clocking:

NVIDIA GeForce GTX 1060 3GB (not over clocked): ~10.1KSol/s @ 96W with v0.22 and ~10.3KSol/s @ 100W with v0.3
NVIDIA Quadro M1200: ~3.6KSol/s with v0.22 and ~2.1KSol/s with v0.3
Intel i7-7820HQ CPU: ~600Sol/s with v0.22 and max rate about ~581Sol/S with v0.3 (no core affinity set, top shows it using only 1% CPU)

After over clocking:
NVIDIA GeForce GTX 1060 3GB: ~11.3KSol/s @ 108W with v0.3

FYI:
When trying to enable overclocking for the GTX1060 the main problem was caused by xorg.conf being reset at either reboot or a restart of gdm.
This was fixed by making the file read only and immutable after making any required edits to it, which included:

Option         "RegistryDwords" "PowerMizerEnable=0x1; PerfLevelSrc=0x2222; PowerMizerLevel=0x1; PowerMizerDefault=0x1; PowerMizerDefaultAC=0x1"
Option         "AllowEmptyInitialConfiguration" "True"
Option         "Coolbits" "28"