Used marinade from the following video
https://youtu.be/NpljhcU3IPk?si=PGntZYiCxO3Lv8w-
Cooked between 120 to 150C ambient until internal temp reached 95C. Basted every hour with an olive oil, lemon and garlic mixture. Took about 5hrs
Also tied shoulder after marinating in case it fell off the bone towards end of cook.
by Op1am