Maybe it just worked out for me or maybe I have my arrows tuned just right but I was banging arrows at twenty yards with the Phantom's and finally had to stop as I had no taking to much feathers off...lol didn't seem to matter how the heads where lined up.
on some of my bows I get the exact same thing...no difference at all in how I line everything up...on others it makes a difference...broadhead...cock feather in or out...etc...
Only ones it matters to are you and the arrow.
Have never had the need to align BH's other than for sight picture.
If your set up is tuned,...you should be able to shoot a host of different Bhead to the exact same spot. I hunt with different types in my quiver all the time.
Mostly if I'm hunting for deer in deer season and there's hogs about, I take 3 of my main Deer heads, Zwickey Delta 4 blades, a couple of No Mercy or WWs for large boar hogs, and a narrow 2 blade for a follow up shot. Any of them will go where I'm looking if I do my part.
I align them on my wood arrows (perpendicular to the string) because the spine is stronger with the growth rings than against them. Carbon or aluminum shouldn't matter, I guess.