I think too much thought goes into camo for early bear season. More important is learning to just not move too suddenly. Bears have long been said to have bad eyesight but they can see sudden movement VERY well.
On that expensive scent blocking clothing, all the scent control in the world isn’t going to hide you from a bear because you have to breathe. Refraining from eating garlic and onions while you are hunting can help and any alcohol you consume the day or night before hunting will be oozing out of you the next day , all of this of course on your breath. Brushing and garling and rinsing makes you happy but doesn’t hide you from a bear. Smokes of any kind while in camp or actually hunting will put a target dot on you. And then there’s this thing that bear just seem to have this 7th sense that knows you are around when in the woods.
I noticed that baiting and taking stand early in the morning will often make the bear go nocturnal if you startle them coming in to bait or set up to hunt. They’ll leave the bait before you even get there in the morning and won’t come back until well after dark or they’ll go visit someone else’s bait where they haven’t been disturbed. Staying after dark and spooking a bear off a bait or trail can do the same thing.
My baiting was always done at late-morning….11 or so and I’d get into the stand right after. Bear can smell the change of smells at a bait pile and will come in during daylight if the smells and bait are right. Daytime bears tend to be less tentative about coming to a bait when the woods are full light and not full of shadows. I’ve never taken a bear before noon and never have shot one after 4:30 in the afternoon.
Some wind is not a bad thing, but an all out blow can really screw up hunting time any time of the day. Don’t let rain chase you out of the woods as some of the best hunting can be had during a nice rain as long as there’s not thunder or lightning.
Of all the variables that come with hunting bear I still feel that movement is the biggest spoiler of all. Use bug repellant as it doesn’t seem to bother bear and swatting bugs will ruin more possible shots than any other concern.