I rarely go in before daylight anymore. I never do while bow hunting. It's coldest right before dawn, and bowhunters literally need to be over top of the deer, so how does that play for thermals? It saturates the ground and vegetation everywhere you walked and under your stand. Then when the sun crests the horizon and begins pushing a breeze, all that pooled up stink gets blown about.
You ever find yourself sitting statue still on stand, zero wind, can't hardly see yet, but have deer blowing at you from areas nowhere near your access trail? It's especially bad in hill country because the thermal downdraft flows down the drainages like water and converge in hollow bottom drain, the same path and time bucks take on their way from night feeding to day bedding.
Rifle season is different. I often set up for 100yd+ shots so I can mostly set up in non deer areas, shooting into deer areas. My stink doesn't matter because there aren't any deer to whiff it. Completely different set of circumstances with firearms and bows.