On this post http://nodalninja.com/forum/index.ph...sg4570#msg4570 you described the base of the NN5 as having 2 3/8" holes. I got a RRS plate to work with it and found the two holes an asset to avoiding any twisting of the plate.
I just received a R-16 rotator. Much to my surprise, it only had one hole in the center.
Why the inconsistency and lack of 2nd hole?