I don't have my driver yet, but I'm routing the hole today. I know, I know, not the best idea... but I can't be stopped. I'm a routin' fool! I have read that the cutout for the shiva is 11 inches. This is the most prevalent information in the adire docs. I swear I remember reading on some adire page or pdf, though, that the cutout was to be 11.1 inches. Other 3rd party sonosub pages seem to confirm this (http://www.quux.net/roo/diy/sonosub/diary2.html for example). What's the real deal with the shiva cutout? I'll be using a MkIII shiva. Thanks!!