whats the purpose ?? road race or track? good ride ? A little more info
BMR.. well known, non adj, get poly bushings on both ends for less driveline noise.
Steve, I'll say this, the Bob's arms are sheer works of art. From the programming, the CNC work, surface treatment, etc, you've done well. The investment you made in educating yourself to be so proficient within your skillset is paying off in droves.
Ever consider doing your own rear cover along with a bell crank...aka a Bob's Watts?