Ivan, thanks. Time will tell if it works like it should.
Tony, thanks. Yep, the party is on, I hung them on Sunday and so far just one visitor, a Wren was checking out the Tray feeder last night. I think I may have a squatter; he was going up inside the top looking for a place to roost.
OldRivers, thanks. Just tinkering in the shop and sharing the ideas I come up with. Folks may want to give them a try themselves.