Just ordered a Rycote INV-6, based on this thread. So it'll hold a delrin active bar? I see a reference to the INV-7. Did I order correctly?
Personally I would have gone for the INV-7.
There are 3 mounting positions on the 7 - wide (as supplied), middle and narrow (the narrow is the same spacing as the INV-6). So, I would have gone for the 7 for the flexibility.