Donald, thanks so much for your post, you make excellent points. In particular, I share your caution about curved whiskers. There are two straight whiskers, and two sharp ones at O-72, and the others are much broader. I will look at this again, so see if I can work in a straight lead of 6" or so for each of the curved whiskers.
I appreciate your comment about the size of the turntable. I have been looking at Millhouse River Studio's turntables, but boy, are the expensive!. I will think about a larger turntable, and using more of the aisle "people" space, but that space is also a priority.
Great post, many thanks -Ken.