(FYI - I'm asking because I'm not a stringer) Dear stringing experts - My friend wants to try some Blue Gear that I have at home. I have a whole reel, so I don't mind cutting him some so he can try it out. I want to make sure that he has enough string so the guy who strings his rackets has enough to work with AND also avoid any mistakes that might waste string. Soooooooo....... -How much should I cut for my friend? -How much extra should I add on (let's say he needs X feet of string, should I add 3 feet more to make sure the string has enough for tie offs etc.) -Any other newbie things I should avoid? Thanks.