I just might have to try this real soon. I'll do mine in the smoker instead of an oven though.
Any of you tried this?
"One bone-in pork shoulder. Coat it with a cup of white sugar and a cup of salt. You cover it in plastic wrap and refrigerate it overnight. The next day, you unwrap it and roast it in the oven for six hours at 300 degrees, basting hourly. (Quick note: some people wash or wipe off the salt/sugar rub before roasting — it just depends on your tolerance for salt.) Then you take out the pork shoulder, coat it in seven tablespoons of brown sugar plus another table spoon of salt, jack the oven up to 500 degrees, and give it another 10-15 minutes to develop a crust."