"I love it when a plan comes together!" You're not the first bolter I've managed to convert to precision timing methods- - - - -hope you're not the last! Doing a SWAG with a vacuum gauge might be OK when nothing else is available, but the guy who invented that delay knob on a strobe light has been my hero for a long time!
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!