JRMYEH,
This is easy,
Your export the settings of WOL (-> Host -> Export)
Then, you open that file in a text editor (TextEdit)
You replace the 5 by a 2 at the end of the line referring to your NAS
You import the new settings in WOL.... it works.
I got an mail exchange with the author of Wake On Line; he said he you change the minimum time someday.
A very nice guy.
However, I had several crashes of WOL. Just need to restart it... So this is not THE solution, just a band-aid!