It's early in the morning, but here are a few tips.
- no grease or oil on the valves ( they usually say right on them.)
- Before starting, make sure your regulators are turned all the way out. ( don't stand in front of them, that's a pretty big spring in the valve.)
- Open the oxy valve all the way.
- Open the acetylene valve only a turn and a half ( reason being, if a fire were to break out, the valve could be closed quickly.)
- When shutting down, acetylene first then oxy.
More as I think of them. Google for more tips.