Several things to consider. First Muzzy can be hard to tune. Looks like you are shooting 125gr heads. What size fetching are you using and are they vanes or feathers. Too much weight (FOC) can cause all kinds of arrow flight issues. Your arrow is correctly spine so that is not an issue. Have you spin tested each broadleaf on each shaft? Don't worry about your blades lining up with your vanes/feathers as this has very little effect on arrow flight at realistic distances.
Paper tuning is a good starting point but only a starting point. The Quest is made by G5 and is a dual cam bow. Dual cam bows MUST be timed (cam synchronized) or you will experience arrow flight issues. This must be accomplished with a draw board utilizing a digital scale. Big box stores will usually not have the proper equipment nor experienced technicians with the knowledge necessary to properly set up the cams for both timing and draw cycle.
All this may seem a bit confusing but it really is not. Take your bow to a reputable shop that sells dual cam bows and have them set it up. My next suggestion would be to move away from those 125 gr Muzzy heads. Brodhead are like the Ford, Chevrolet debate, it really boils down to personal preference but my experience wit Muzzy heads has not been good. Modern expandable are fine for everything except dangerous game. They are not the expandable of older days and will work fine on deer size game. I tend to stick with fixed blade heads but that is just me. My choice is G5 Strikers or Slick Tricks, both in 100 gr heads. Most of my friends use expandable broadheads and all have taken many B&C bucks with no issues. Again it boils down to personal choice.
In the end when everything is set up correctly your field points and broadheads will have the same POI. This post can turn into a very long reply. I believe you have a good starting point but if you have any questions feel free to PM me. Good luck.