I have noticed that the couplings have been modified for the new version of OPM (08.11.11.304), as compared to the last one that I had been using (ver 08.11.09.568).
The main problem is that the outside diameter that I enter ends up being the center of the "donut" vs the outside diameter. Is there a way to resolve this in the current version that I am using, it doesn't look good and is not accurately portayed.