Haven't done too many overnight on my 18.5 due to trust issues.  almost full ring of B&B. it settled in at 237-250 for the first 9,5hrs. Apple and hickory chunks Set alarm on 
			
 
		 Inkbirdbbq
 IBBQ-4T in case of heat issues (took nap). When money muscle probe hit 195, stirred coals and opened vents .Temp went up to 290  let go until 204. total cook 11.5 hours. in cooler for 3 hours. Lots left for suck bag freezer storage
		
		
	
	
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