As others have said

1) READ THE EFFING MANUAL!
2) Wear a harness with a THREE (3) Ft lanyard not a SIX (6) ft lanyard
3) Locate and identify ANY wiring within 10 ft of the boom when deployed.
4) Have a spotter work with you because when running a man lift you must be a human lighthouse...and no one is that good.
5) READ THE EFFING MANUAL!

One good thing is I personally know the Welding Inspector at Genie/JLG and he knows his s**t so at least the welds on the boom arm won't fail...