Ok, I took some pictures and provided details on how this works.
I just don’t know how to get them out on this site.
For Walt et al, I am using the FL receiver instead of the V2000.
On part 5 of the procedure, when you install the ‘funnel’ a good fit will be if you can see daylight from the entrance of the FL sleeve by looking in the back. That means one has a clear path for air transfer.
If I can figure out to get pictures to you, I’ll get them out.
Perhaps a moderator can help me. I just want to put them out as attachments, not web links.