Unchecking "Block advertisements" just saved me 82% CPU usage.
I love Bugless Beast and am using v0.6.2.1. Recently, the CPU has been spiking until I rebooted and then spiking again. I installed and ran OSMonitor to see what was using all the CPU and it was Android System. I looked at the log for Android System and an error came up every second "skimagedecoder::factory returned null". I did a little Googling and saw that this might be related to AdMob. When I unchecked "Block advertisements" in the ROM toolkit, my Droid became happy again. I just thought I would pass this on.