[oldE]

Originally Posted by MRM

Blizzaks will actually help you stop on ice. I am serious. They are that good. I wouldn't be wasting your time bugging you about it if I didn't think you would fall in love with them once you tried them. https://tractionlife.com/bridgestone-blizzak-dm-v2-winter-tire-review/

I will second this.
I used to lock in the 4wd depending upon conditions. If there was just a bit of snow or slush, let the system handle it. If the snow or slush cover is predominant, lock it in.
And yes, locked in 4wd can eliminate slippage in one end or the other, it can also lead you into an exhilarating 4 wheel drift to the scene of the accident under the wrong treatment.
When the traction is marginal, I tend to worry more about what the other guy is doing. I know my limits.
Best
Les