RE: arrow setup ?
Xbow,
IMHO, if an arrow needs to be lined up so that a blade on the broadhead needs to be sticking up verticallyto shoot consistently there is something wrong with the arrow setup. I actually have that problem with my setup.
I shoot the Beaman Thunderbolts with a 125G broadhead which giving me a total weight of 450g. The F.O.C. (Front Of Center) is 10% with the 125g Slick Trick. I found that if I aligned the broadhead blades vertically and horozontally they flew perfectly and I put two consecutive arrows in the same hole at 40 yards shooting from a monopod. If I didn't line up the broadhead blades arrow flight was erratic. Typically high and left or low and right.
F.O.C is a measure of the balance of the arrow. In my case I do not have enough weight at the front of the arrow (F.O.C to low, should be at least 15% for a hunting arrow) and the broadhead is steering the arrow. I have since refletched the arrows with a 4 degree offset to see if that will stabilize the arrow but I have not shot them yet. To darn cold for me.
Bob