i have been readin a book and they are talkin about stuff i do not know anything about. do i have to worry about arrow rest or nock adjustments? and is there any more tuning i should worry about. plus if i buy my bow at a pro shop will it be tuned for me? or do i have to shoot it quite abit first and then they will tune it? and if i buy it from a store like cabelas or scheels will they do anything in helping me tuning wise? these probley sound stp to you guys but i am new so i dono much. thnks for your help and puttin up with my questions