[V6-12v] how do you test for spark?

[Kent McLean]

What's the best way to test for a spark at the spark plugs?

a) I have one of those little spark testers that let you
    turn a bolt to adjust the gap.  How big a gap?

b) Failing that (if I can't find the little tool), I'm going
    to pull a wire at the plug, insert a spare plug into the
    wire terminal, ground the plug, and then crank it.

Is there another, better way? Patient is my '94 100 V6.

--
Kent McLean
'94 100 S Avant
'89 200 TQ, "Bad Puppy" is no more