Good that this has been cleared up now. The longer boot times on the first reboot can really confuse people since they expect the exact opposite.
You don't have to run the Monthly over and over, you won't get much more performance increase if you've already ran it once. The Weekly will do fine and move less data. You could also check out my Optimized System Disk scripts
. They move less data without performance loss.
You can also take a look at my benchmarks
to compare the boot times and data movement of different scripts and defragmenters.