I got this one last year, fits nicely on the lower grate of my 23" for smash burgers. Covers 2 burners on my indoor stove.
https://smile.amazon.com/gp/product/B002CMLTXG
I got the locking nuts for mine when they came out. No worries about the gas door leaking anymore! Especially since I like to push the ashes up against it, which in the past caused some leakage.
Yes, with enough time to equilibrate, they get pretty close to each other (within 20F). A little more deviation at higher temps due to more airflow through the top hat.
Learned that lesson on one of my 1st MEATER cooks - ambient temps went haywire, opened the lid and saw the end of the probe was all gunked up with burned on juices/fat.
Not yet, I did use some of the lemon myrtle coconut chili sauce on some duck sliders last night. Yummy.
@Aussie Ora - so, was that a definite YES on the new Makers Mark glass??
As noted, we love spending other folks money on BBQ toys! But, the truth is that you must load up that pallet with as much cocochar, coffee wood chunks and charcoal as you can, as it's impossible to get otherwise right now!