RE: tuning broadheads?
Maybe I got lost somewhere on the "learning curve", but it sounds like there's some confusion here.
As I understand it, "broadhead tuning" is achieving as high a level of broadhead concentricity as possible..... spinning the arrow/broadhead and getting them aligned as perfectly as possible.
It seems to me that shooting the broadheads and adjusting the rest accordingly would be "bow tuning", working out the kinks that don't appear while shooting field points.
As to aligning broadhead blades with fletches, I started out doing that JUST because I like the look. A rack full of arrows that are identical in every way does look cool to me, but I've seen absolutely NO increase in accuracy doing this.