Hi,
Strange you have bad results with p106m.
I tested the card on MSI GT60 / 70, on Alienware 17 & m17x R4 (needs unlocked bios to be in SG mode), DELL M6700 (needs OPTIMUS on) and HP ZBook (needs OPTIMUS on) and it works flawlessly. I have around 2500pts on time spy.
Only caveat is that the frequency is very low (1290Mhz) and there's no BOOST on this one. Second problem is BIOS structure is different to Geforce 1060 GTX so all registers are different... It's a shame because the card runs super cool (60° on full load on MSI GT60, even less on Alienware).
Be aware that on Dell Precision & Zbook you loose all external output except VGA (as HDMI/DP are linked to PCIe mxm directly). On MSI GT & Alienware, outputs are OK though.