No, I haven't missed your point at all, but was simply offering additional data should you decide to go to strictly heims. And certainly, I recognize that as the distance from bolt center to bend radius increases the angle changes. That angle, other than for fabrication needs has little consequence compared to changing the offset distance of the camber bar. As you stated, the two fastened ends and their respective bores need to remain parallel regardless of the end type unless heims are used at both ends, then it is of little concern.
Always glad to assist - keep us posted on your progress.