Thanks for the input.
Let me call Chief and see if the Chief SLM281 works with the 1st gen RMPA(U). I presume it should.
Fastest way to get up and running would be to just get that.
The Chief -> Milo link makes me create a dealer account: https://www.milestone.com/my%20account
The Amazon link has a delay.
Would love to get ASAP to mount.
It may be hard to have a new ceiling base as it is screwed into wood in ceiling not a pipe or other standard fixture.
Certainly worth $100 to get it installed fast and then think about these other issues for next projector in a few years.
I was also wondering about
1. positioning of JVC RS520 vs. RS20 relative to CineSlide and ISCOIIIL anamorphic lens
RS520 and RS20 are about similar length, so may still work okay
2. Do I need anamorphic lens with new projectors having memory modes for that and using the Lumagen Pro?
If I sold both of those should help finance the recent HT updates.
I may message you soon.
I think I have your email address.