Not a bad concept for blade alignment.
Even though it doesn't make a darn bit of difference, I always line up my main blade horizontally on a 2 or 4 blade head. With a 3 blade, I have to have either one blade up or down.
I set up 6 Easton Axis arrows(w/HIT inserts) with 125 gr Viper Tricks. I installed, removed, sanded with the stone supplied, re-installed etc until perfectly aligned. Kinda time consuming but I can sleep at night now.