Compression Test Procedure?

I want to do a compression tes on my engine but i am a little unclear about somehting.

the hanes manual says to pull the coil wire and ground it but using aligator clips on both ends. So, do i just use s jump wire with aligator cips,stick one aligator clip in the coli wire boot and cip it to the metal connector in the boot? Then do i connect the other aligator clip on the jum wire to a body ground or ground on the engine? if it is an engine ground can i just use a bollt ont he alternator bracket or power steering bracket?

Help would be greatly apreciated as i am trying to see what i need done to my engine this winter. And i am sure this is a pretty newbie question but i got a learn

thanks

the hanes manual actually says, "Detach the coil wire from the centor of the distributor cap and groud it on the engine block. Use a jumper wire with alligator clips on each end to ensure a good ground."

so would it be better jus tto detach it from the coil pack or should i do as the hanes manual says and ground it.

what i did yesterday was, i took it off the cap and placed the aligator clip of a jumper wire on the mettal connector inside the boot of the coil wire. I then put the other alligator clip around a bolt that connected to the brackett the alternator is on.

It just sounded weird when i cranked it with the coil grounded like this. is this ok?

thanks