I know the difference between smoke and a smoke ring, which can be achieved with zero smoke... Just rub some tender quick on a chunk of meat and throw it in the oven. The smoke ring is the reaction of NO and myoglobin. It stops right around the time the stall begins usually. This is where many people think the myth of the two hour smoke absorption began.
What I am saying is from my own personal experience of having cooked hundreds of butts and briskets over the years is you absolutely get more smoke. It's limitless. I have over smoked stuff to were the bark tastes acrid as hell.
This summer I have cooked 6 briskets on different occasions. I am at elevation and have tinkered with a few a different methods to help retain more moisture during my cooks. The smoke profile in a 12 hour cook is very noticeable in an unwrapped vs a brisket wrapped in hours 8-12. You will get nowhere near the smoke profile if you take it off after 2 hours and cook it in the oven.
Smoke adheres to the outside of the meat. And it's probably faster in the first few hours since it's at it's coolest and most moist, but it definitely keeps adding up. Google is your friend on this one.
Google Search Smoke Myth
And I know guys like
@Dawgbite @PBRME @mcdawg22 who have smoked as much or more meat than I have over the years will back me up.
Here's my last brisket from the Saturday we beat Auburn. Cooked unwrapped until after the stall and wrapped in foil. Good smoke and very juicy and tender. Bark slightly soft in a few spots, but a restaurant quality brisket:
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This is a foil boat. A lot more smoke because it kept adding smoke for the last 3 hours or so.
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Here was the unwrapped one from this summer. Smokey as hell and dry as hell. Never again above 2000'.
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Here's a perfect butt. Turbo style at 7 hours unwrapped at 325°. Way more smoke than if it had gone in the oven after 2 hours...
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So, I'm not sure what you cook with, but if you like smoke, the longer it's exposed, the more smoke you get. Guaranteed.
I don't mean to be a jerk, but I am pretty serious about this stuff. I got real close to buying a BBQ joint this summer, but peeled off because of staffing challenges in the area.