What brand of delay-flash light are you using? I use Snap-on lights, and they're very accurate. Of course, I also mark the damper about 30 degrees both ways while I'm degreeing the cam, so I've got a reference independent of the timing light, too. If you're really planning to trash the light, I'll take it!
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!