Well, for anybody that missed out on the Makro-Symmar, I will be posting one for sale very soon!
As Robert previously said, usedparts-semifa is one of the best. I ordered the lens Thursday, and received it this morning before 9:00 am, extremely well-packed. I then quickly tested it against the Makro-Symmar version that I already owned, an SR 5.6/120-0060 optimized for 0.5X, using a reversed Minolta MD 35mm f/2.8 objective at f/4.
The results from both Makro-Symmars were indistinguishable to me. Both lenses were focused at infinity, and both produced very clean 3.41X magnification images, with minimal CA across the field. I want to thank Robert again for this discovery, and all the other testing that he has done!
I'll be doing more rigorous testing of other lenses reversed on my Makro-Symmar in the next few days, but I'll be putting the one I just received on the Equipment Exchange so someone else will have the opportunity to use it.