My friend Franke is the Man! After deciphering my order, he went to business machining the baluster spindles to perfection. With this modification, we will be able to easily adjust & fit the spiral staircase hand rail to the balusters one the staircase has been installed.
The plan is to drill holes in the hand rail, place it on top of the new baluster top pins and then weld the hand rail in place. This layout will provide ample leeway while still maintaining the geometric integrity of the staircase.