I like hidden features :P Sadly, I did uninstall WAU after it crashed on me constantly or used 100% CPU. But I could try JWU ;)
Use my "solution" to the 100% CPU problem...task manager then set the priority to below normal. You have to do it every time you run WAU, but it works for the whole session. It still runs at "100% CPU" but doesn't drag your system down and is more responsive.
I'm unsure of JWoWUpdater has this feature...I use it, but never looked