After the stated concern/issue with conical armwands, I borrowed the 600g ring from a friend to see if it will be a problem. I have a Michell Orbe SE + SME V. The armwand was set up at the height stated in the instruction manual (I believe something like 10mm from the platter to the parallel lines on the side.) I tried it with a 200g and a regular LP, and there is enough clearance underneath the armwand. The only thing was that I had to move the armrest further away from the platter. But otherwise it looks like it will work.
FrankC
FrankC