I've spent most of my life learning X6A and X4 so I'm not much help.
Killed a X6b buck in the early 80s. We hiked to the top of reconissance pk the night before, 3 of us got up the next day to an army of hunters. I dropped down into the timber and killed a "big" forked horn. My buddy spent another night up there and killed my buck's twin. He said he had it all to himself on that Sunday.
All that said, there are bigger bucks coming outta 6b than 6 a these days and I'm gonna draw it next year instead of waiting an extra year to hunt 6a.
I would look at some of the 6b country overlooking the Honey Lake Valley, or at least on the very northeast side of the NF.
As far as the east side of 395. You'll have a better chance of finding a great buck there. With this past moisture laden winter, some may have remained on wintering grounds since the feed was so good.
Haven't been home in over a week but heard there is a big fire behind Doyle?