#1. Possibly
#2. Yes, What press does he use?
#3. Yes, it was your decision to order the custom strings and there is no warranty on strings. PSE is / was beng nice.
#4. IDK
#5. Not likely going to happen. I suspect the shop and not PSE as far as the actual problems with the bow.
#6. Yes. The top cam lean is easily fixed by twisting one side of the split yolk of the cable. When you pull the cables to the side for arrow clearance you effectively pull on one limb harder than the other and you must shorten the side closest to the cable rod so that thee cablepulls evenly on both sides of the cam.