Did the unthinkable and accidentally dry-fired my bow. Got distracted by the dog and once shooed out of my way, thought I had an arrow nocked already, drew the bow, fired the bow, and bag!! Looked down and realized I had all 6 arrows with me...

Sooooooo time for a new string and cables!
Few questions
-Does Jim Bows make their own strings/cables or order them through a string manufacturer?
-If they order them through a string manufacturer which one is it?
-Any recommendations for different string/cable manufacturers if not ordering through Jim Bows?
-Is it frowned upon by archery shops to get them to install strings/cables that arent ordered through them?
Thanks!