How did he know the bow was " still tuned" . And tuned for what??

This is the crap that comes out of pro-shop mouths that forced me years ago to learn how to do " everything" myself. It amazes me[:' (]

A bow perfectly tuned for field point flight could very well not be in " perfect" tune for fixed heads.

You need to fine tune the bow for best broadhead groups. Sometimes they will hit the same as field points but sometimes they won' t.

If you want them to hit the same point try moving your rest to the left a tad.

or put the fp' s away - grab atleast 3 bh tipped arrows and tune the bow for groups and flight.

or it could be all in hand torque and poor shooting form.

Good Luck