As a right-handed shooter the pre lean in your cam should be the other direction because of the cable guard. Leaning the cam to the right will make the broadheads shoot further right though. As you have already stated the arrow spine is the likely issue. If moving your rest does not affect...
If you are getting inconsistent shots, it could be a few things. Cam Timing, Fletching Contact, nock pinch, nock fitting to tightly to string. Often times it is the shooters form. Facial pressure is one thing people don't always think of.
Black gold sells a longer bracket for the windage. Commonly needed on the sights with micro adjust on some of the newer bows. It is worth checking that your arrow is center (not pointing left). You can easily do this by putting an arrow on the arrow rest and using a tape measure to distance from...
String off to the left suggests pressure going through the thumb side of the grip. I suggest having your knuckles and wrist at a 45-degree angle. Try and get it so that you can hold and anchor with the string tracking straight. It normally is a subtle re-adjustment don't do anything unnatural or...
Powdering the arrows is the best method. I would try turning your nock in small increments until you find where it no longer contacts. The most likely culprit is hand torque. When you got your bow paper tuned did you shoot the bow through paper? At full draw glance up at your top cam the string...
I am always looking for gear that can do more than one thing in order to lighten my pack. I will post a couple of ideas I use to get the discussion started.
What pieces of gear do you save weight by letting them do double or triple duty?
Bug head net as a storage sack for extra clothing...