Hi CapMaison
Most of us in the Adagio business would disagree with your methodology and your reasoning, and would rather use the "reverse" option in AP. But you are entitled to your opinion, if it works for you.
Marking a check as "void" in AP has the same effect in the system as clearing it, which is to say it removes the check from the list of outstanding checks, and has no other effect on anything else.
Steve