Those adjuster tools work well on a static adjustment too- - - -sort of a "third hand". I can adjust all 12 valves in about 5 minutes by using the "companion cylinder" static adjustment procedure.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!