For anyone struggling with stability using this method, I have finally achieved equilibrium on 4x 3060s running lolminer as described above with the following OC settings:
Core Clock Lock at 1600
Mem Clock at 2200
PL 120W max (not necessary due to core clock locking, but that’s what I have set).
This gives me a solid 37-38 Mhs per card, average 112W each, and lolminer hasn’t rebooted in several days! Additionally the temps don’t exceed 60C. Hope this helps anyone out there!