Unlike Bronko and mrbb, I think it just might be your bow and here is why. The POI changed but was CONSISTENT. If it was his form guys, it wouldn't be a consistent change. Especially one that came over night. I have a suspicion that it MIGHT be your rest sauer. Give the specs on everything on your bow. Rest, Sights, peep or whatever, kisser button or not, release aid type, string loop. Basically everything on the bow and pics if you can.