That dark thick bark is where all the flavor is, & when you pull the pork & incorporate the bark all through the meat it is what makes people come back for seconds. We like thick bark & never wrap a butt, UNLESS we are running out of time & everybody is hungry then a quick wrap to get it to temp is what will be done. A good finishing sauce is a MUST too!
We use SoFlaQuers, but there are several other ones on here & Chef Jimmy J has a good one too.
Al