Sounds like it wasn't bad for a trial run! A digital thermometer would help eliminate the guesswork on cook time. Then you can use your time to experiment with flavors!
Weber One-Touch Silver 22.5 (1995)
Pit Barrel Cooker - Classic Version
Potjie Pot cast iron 5 Gallon
Thermoworks Smoke, Red "Backlit" Thermopen, Red ChefAlarm, Red Thermopop