I have jsut done my ready for Knotts.
I have th ehinges shipped during last year
I ended up putting 4 set screws in each hinge, the first two went through the bushing and I blind tapped the holes for an 8/32 set screw. Before I put each set screw in I put a 1/8 ball bearing in first, hopefully this will make them last.
This improved the play a lot but still had some movement with the plate moving on the pin, I put the other two set screws in the plate and tightened them. All 4 screws I was able to do with the doors still on