I have seen this question asked before on a few other forums, so I apologize in advance. It just seems there are so many things people say its hard to keep track of it all.

I shoot a PSE Bruin, 28 inch draw 60 lbs. I have been practicing all summer with 100 grain field points and I group well out to 30 yards. Now that there is only a couple weeks until opening Archery I wanted to try broadheads.
My understanding was just to practice with the grain FP you BH will be, then when it comes close to season, take a few shots with BH and fine tune your sights to them. Shooting the same grain FP should put you pretty close to your BH...

So far I have tried 3 types of Broadheads, with my pin configuration Ive been using for FP.

G5 Montec 100 grain - about 4 inches left and 2 inches low
Thunderhead 100 grain - about 9 inches left and 12 inches low
Muzzy 3 blade 100 grain - about 4 inches left and 2 inches low

All shots taken at 20 yards....I even tried using different shafts (of the same kind) on the same BH to eliminate the chance of shooting a bad shaft.

I dont care what broadhead I use, as long as it effieciently will kill game... but my question is are the BH normally this much off from the same grain FP?

If so, do I simply adjust my sights to whichever BH is closest to FP and shut up about it? Or is somthing else wrong? I dont have any problems consistently grouping FP, and my bow was just taken to the Archery shop last week and "everything looks good".

I have heard certain heads shoot better out of certain bows... if this is the case any reccomendations on a PSE Bruin? I realize there are different opinions and everyone thinks there way is right...any help will be appreciated!!!!!