Ignition Points Tech Question

....If I hold the coil wire in my hand when cranking I get an eye-opener of a zap, but still no visible spark or arc coming from the end of the coil wire to a good ground, also checked at the spark plug and nothing.

so this was before the screwdriver trick? Ok....after the screwdriver trick he gets a spark at the ground source...? Well have to see how this pans out.