at least the way i set up my cooks.
i guess it's a ymmv type of thing.
Do you ONLY cook with the baskets split and indirect zone in the middle?
From what I've seen, most others NEVER cook that way
Generally yes. That's how I set up my indirect cooks. How do most people do it?
It's taken me awhile but I'm doing this more and more as well.
1) It gives a more even temp to the middle food zone because more food is equidistant from heat. With heat off to one side, something is always closer to the heat and before you know it you start to use firebricks or other baffles. That's less of an issue here.
2) My drip pans and food trays tend to have right angles and that helps fit food better when the "food zone" remains rectangular. Or even if just lining up food, you want it organized for flipping or cooking evenly and less time moving it closer/away from heat. I suspect this is secretly a reason why gas grills are popular.
3) Flip grates, duh! Unless they come out with one where there's just one hinge in the middle, it's super handy to flip up and there's your coal receptacle.