I went ahead and printed the new middle assembly. I have it all together and adjusted to what seems pretty square. I’ll hopefully get a chance to test it later this week.
The only problem with the new design I’ve run into is that the pineapple coupler seems way too large for the 5/16 threaded rod. I even shrank it down 98.5% and reprinted, but it still wouldn’t tightly hold the rod. I think I can shrink it further, but thought it was odd; anyone else seen this?