when I arrived home today, there was a box from
www.servocity.com 
I knew Ihad ordered it, but wasn't expecting it for a few more days.
I noticed that with the previous D11 servo hubs, I had a slight rubbing issue. The mounting screws lightly rubbed on the (MODIFIED) continuous servo. The new servo horns are slightly diffent from the ones I installed yesterday.
unnamed (8) by
Anthony Kalnoski, on Flickr
The NEW servo horns installed. I still had to slightly enlarge the mounting holes in them, but NOT as drastic as their predecessors. This time I used the dremmel (knock off cheap Harbor Freight) tool, & slightly elongated the holes.
unnamed (9) by
Anthony Kalnoski, on Flickr
The NEW horns, with the yesterdays version shown,
unnamed (10) by
Anthony Kalnoski, on Flickr