once you can get to the valves all becomes clear
i managed to sort myself out quickly! luck or technque or config i dont know
i use a agir back plate and harness,othree pbb undersuit and 2\3 resin othree
suit, also i have long euro cylinders which are taller than fabers and standard
steels,
i did use usa galvanized sherwoods before that and i could still drill well,
hope it goes well for you mate, keep drilling and it will become second nature |