I shot another welding shop recently and was very happy with the photos. For this shot i placed a sb flash behind him and pointed it directly at his back. I placed another sb flash, into a silver reflected umbrella, high and to camera right. I did not have much time to fiddle with the light as my vast experience in welding shops has taught me that welders are not fond of having their photos taken. They will tolerate the camera for a few shots and then walk away. I dont complain about the light not being at the exact setting i would like on these occasions. I am just happy to get the shot.