Hi Frank,
You may not have looked too closely at the thing...it has quite a bit of offset as is. I can't imagine the Slob has more! Open it up and take a look at the plan sheet, MM top view in the center of the page. I didn't measure it, just followd the plan, but it must be 10 d. or more. Maybe it's a "baby Bi-Slob" already!
OK I just took time to measure it...something between 12 and 12.5 d. Does the Bi-Slob use more than that??
--Ray
P.S. I like your idea of a building thread.