Just take the time to do it right and simply pull the fuse. It takes two seconds and then you don't have gas sitting in the cylinder and stinking up the garage.

Also I didn't see mentioned anything here about leaving the throttle WIDE open. So I will write the steps:

1) Disconnect Fuel pump fuse
2) remove plug wires
3) remove spark plugs
4) screw compression tester into spark plug hole
5) either block the throttle wide open or simply jump into the driver's seat and keep your foot on the pedal
6) turn the ignition and crank the motor seven times. Seven seems to work the best.
7) get out, check gauge, repeat three more times.

You might also want someone to monitor the gauge while you're cranking it as the way the cylinder builds pressure can also help in troubleshooting.