...chasing, changing, migrating, pixy dust, alchemical hope. The poor designer appears to fall under, "stress is the artifact of an inappropriate model." Maybe, the problem lies not with the design itself, but with the platform, aka "model," that supports this arm during the tuning-in phase...as the reseller of this platform has been known to say, "designed by west coast grads, etc.".
Cheers!
Cheers!