After talking with Brad this am I added a 3rd 2mm spacer under the arm during my build and it was too much. I need to go back to 4mm under the arm in the am.
Pillow balls I had the same issue on the first one. Stiffer material or an aluminum screw would be nice.
Nice kit to build parts all went together well and quality vs price/value can't be beat. Can't wait to get this on the track and do some testing.