Smoked this 14 pounder for 9 hours! Fortunately it's just us and no company. So it's ok I pulled it out of the smoker at 9:30PM. We often eat late anyway so NBD. Not a lot of work really but you have to go add smoke chips every hour. Luckily we have a meat thermometer because the "done timer" didn't work.
Back when I lived in Santa Cruz, I used to pre-order a smoked turkey from the Coralittas Market and Sausage Company. They have a huge container converted to a smoker out back and used apple wood from the orchards to smoke everything. Corralitas is near Watonville which has lots of apple orchards. Year round they make awsome sausages...and awsome sandwiches.