I have not done one, but I would trim off the silver skin and excess fat, season with Heffer Dust and smoke @ 225 until internal temp 125. Then sear it on all sides at a high temp 475+ on flat side of grill grates or what ever you have available to do that. I just put this on my to do list!
Skip the low temps. For chicken thighs I go right to 400 and pull ~185 - 195 IT. Be sure to dry brine with Kosher salt or Freakin Greek for a few hours. Crispy skin. Same with the brats. - skip the low temps.
Go for it. Temperature control is amazing. Customer service is second to none. Great build quality. I only use the app to monitor temperature while it's preheating. Don't let the app complaints turn you off. I don't see Aaron Franklin using an app.
Great choice! I sold my WSM after buying the RT. Set it and forget it for the grill temp. Use the Weber Genesis with your sear kit. You can quickly heat that to sear temp while the RT is cooking at the lower temps. So there is no delay while waiting for the RT to get to sear temp.