Larry, Please allow me to really confuse you
I'm of the "get er up to temp fast" group!
I typically shoot for 50 degrees higher than the cooking temp I want. I try to get there as fast as possible. Then make hat and door adjustments. But, I know my door hat positions, for whatever temp I want.
It's after adjustments, during heat soak phase, I get the 50 degrees back. Just seems to work for me.
Here's how I do it:
1. Re-fill the basket full every time.
2. Open hat and door wide, wide, wide.
3. Ignite coals with the gas attachment.
4. At 50 degrees F. above target I shut her down.
5. Then set hat and door for desired temp.
6. Never open the lid until I get to desired temp.
Note: Hat adjustment seems most important. Remember, you can shut down a grill with the door open. I try to come close to matching vent/door openings, but always less exhaust going out than fresh air coming in.
Best of luck!!