Be careful with disabling the adaptive. People are finding temporary success with it, but it's actually in place to help the TCM adapt to wear that happens within the transmission over time. I can see there being long term negative effects after people run without it for a few years. No one has been running without adaptive for long enough to truly know long term effects yet, but for what it's worth, many professional tuners leave adaptive learning in place for this reason.
A good transmission tune will fix pretty much any issue people complain about especially with chunkiness on here unless you have a mechanical issue with your trans. I have built several tunes for the 10r80 and on the 18-21 Expeditions and 17-20 F150s. Ford's latest shift configurations fix a lot of these issues in my experience as well. The coast down shift maps and downshift maps are so low in the RPM/Output Shaft speed range and close to other upshift maps that it's easy to see why people have downshift clunking.
Ford addressed this in their newer revisions that the 22 and up Expeditions get and the 21 and up F150s get. I address then in my own tuning as well.