Oh there taint no argument there son, I've made note several times what a usless tool that driver is, just thought since I had the tubing and a few spare minutes I'd whip up another dust collector.
I'm purty shure your gonna have to keep both hands on that thar special adjuster tool also, so I think its a wash. I'm an old timer and “when I wore a younger mans cloths” I was taught to adjust valves while the engine was running and always did it that way. Lately I’ve been doing it with the engine dead in two positions, much simpler.
DG