I haven't been able to run it WOT to do a plug chop but I was going thru plugs fairly quickly. I also went through a ton if jet sizes but the four stroking persists.
On the tuning spreadsheet I saw a bunch of people running PHBG 21mm carbs so I figured that the mikuni was a solid carb.
lastly, I value everyones input. feeling like I am getting some good learning points based on the symptoms that I presented. Definitely has helped me figure out a game plan vs being frustrated.