I've read where both Jesel and T&D say to set their cup adjusters to one turn out from seated in order to limit the exposed (unsupported) amount of the adjuster, and to keep the oiling passages aligned.

Seems like part of the cup-style pushrod-to-rocker clearance concerns could be addressed by converting to cup-style adjusters. Is going from ball-type to cup-type adjusters as simple as changing to hollow pushrods, as long as the lifters support pushrod oiling?