I intend on starting a small stringing business - more of a hobby than anything as I enjoy stringing and won't mind paying off the cost of my stringer. My question is this: how many different choices of string do you think I need to offer, and what specific choices would you recommend. Remember that I will be doing a few dozen rackets not hundreds so purchasing reels may or may not make sense. Also, I live in an area that doesn't have many top level players looking for top of the line poly or hybrid setups. Thanks in advance for your input.