Some how those razor topped fences around nuclear power plants make sense to me know.
I can see proper care of your long bow or recurve might be something an archer would want to know how to do.But disassembling one of the most high tech bows on the market today in you basement seems allot like in home dentistry of self taught minor surgery.
Ever heard ,Don't try this at home.[:-]
Does The term trained professional ring a bell?
I guess, maybe thats why they call them "pro shops."