Do any of you use a string tracker for deer or other large game? If so, have you ever had the string affect flight? Do you use the 17# string or 30#? (I have been unable to find 30# string to buy). Does the string break after a while or does it last pretty well as it's being spooled out pulled by a deer? I've never used one because I theorized that it would affect flight, but am considering trying it for next year. This year, a friend of mine hit a nice buck (sounds like he hit it a bit far back) and it woulda been nice to have a string to follow since we found no blood at all, even at the hit site. His arrow went all the way through so I think the string would have worked well in that case. I have had similar problems when things don't go quite as planned on a shot. It seems that $6 of string might be cheap insurance if it works OK.