I'm with you, I've done it both ways and I definitely don't like mushy rack (well not the bbq kind anyways lol). I think it works well for beginners though only because they get closer to what they think is the measure for of good ribs which has been defined by the term fall of the bone (aka mush). I found that over time I started skimping on the 2 part and changing it. Now I'll light wrap and not use a mop. And because my smoker is vertical I'll put two wrapped racks on lower shelves and an unwrapped one on the upper shelf. But yeah not a fan of mushy ribs and if not done correctly 321 will cause that. I knew it wasn't perfect when I found myself putting the ribs in the grill after it was done to crisp it up so I've since made some changes.
I haven't attempted brisket yet, got any tips on that. I may try for the first time next weekend.
Make sure it is a whole " packer". I've cooked separated flats and points before for smaller cooks, but there seems to be some alchemy to cooking the whole sucker together,
Trim the fat to about a 1/3 of inch. Use a good beef rub ( I sometimes just do kosher salt and pepper, but my traditional is all powders : sugar, garlic, onion , chili, cayenne, in addition to the s and p). Simple. You want to taste beef, but get a little bark.
Brisket I DO wrap. Always. Unwrapped until 150 , wrapped for rest of cook ( I get it between 201-205)
Be ready for the stall ( usually right after wrap) and don't sweat it, it will start going again eventually even if doesn't seem it.
When ready , take it , keep it wrapped, and wrap in a towel over the foil and set it in a cooler ( no ice! ) for a couple hours.
Know your grains! You can cook a perfect brisket but if you don't know how to cut it you'll ruin it. The grains run different directions on different part and can make you insane.
Plan on 12-16 hours
Good luck! Brisket is by far the trickiest cook, but when you nail it you feel like a king.
Oh and I do it between 225-240. I know brisket guys who swear by 275 and higher though. I find that it is harder to mess up the slower you go. 225 is fine, just takes longer . That why I say 12-16 ( including the 2 hour sit at end)