Yes, I did a Pork Butt (pork shoulder, Boston Butt, all the same cut of meat). Mine was a whole bone in Butt just over 9 Lbs. One of my local stores has sales on Butts fairly often, but to get the good price you must buy 2 whole butts packaged together. I usually ask the butcher to split the package up and wrap them separately, that way I can cook one and put the other in the freeze for another day.
The way I did mine was probably close to what you have seen on YouTube. I do mine indirect on the Weber Kettle. I put a mustard binder on then applied rub, place 1 chimney full of charcoal in grill, light 1 corner of charcoal, throw on a couple chunks of wood, let it come up to temp (don't rush this, let any big billowing smoke clear, may take 30 - 40 minutes, then put the pork on and let it roll until probe tender (around 203F internal). I do need to add charcoal halfway through on my set up. I also spritzed with 50/50 mix of apple cider vinegar and water every 45 minutes to an hour to keep it from drying out..
This cook I ran it right around 250F for 7.5 - 8 hours. I normally wrap according to color of the bark but its usually at around 160F internal. Pulled at 203F Then let it rest for 2 hours, then I pulled it.
I have tried it fat cap up, fat cap down, and on this cook as an experiment I trimmed all the fat cap off. For me I really don't think it makes much of a difference. I know you will see a lot of YouTubers explain how you should always do it fat cap up or fat cap down, or the ones that say you should place the fat cap toward the source of the heat depending on your type of cooker, but honestly for me I can't tell much difference in taste once it pulled.
Have fun with it.