I greatly disliked my former 65/6.8 Raptar. When the light is good its almost imposible to take a bad picture of Carson Peak but I managed just that with it. And I was never thrilled by the pictures I took with my 250/5.6 TeleOptar. I have other Wollys that are much more loveable
I don't see why some of the responders don't like plasmats. My judgement of my 135/5.6 Symmar (convertible) is that although it might be a tiny bit worse on 2x3 than my 127/4.7 Tominon (ex CU-5), that one could be quite happy with either on 2x3.