i've tried all and now very fustrated.... i thought that i had under splined arrows , so i purchase 300 instead of 200 cranked up the bow and fired a broadhead... high and right of the field point location i,ve tried paper tunning walk back tunning ... everything seems to be in order i'm shooting good groups with feild points but broadheads don't seem to be in the same spot i'm not sure what else to do or check any suggestions???????