Hey guys, just wondering how many guys have tuned their bows with an STS system on. I have always tuned the bows with the STS system off and later put it on. Well, last night I decided to finish up and fine tune my Old Glory and I decided to leave the STS on when shooting through paper. I was getting a consistant nock high left tear. I moved my rest out and raised the arms on my rest a bit and shot again... nothing. I kept moving and finally got the left tear to disappear but I was still left with a 1-1/2" nock high tear, even with the arrow sitting incredibly nock low off the bow. I took the STS off and tuned and got it shooting bullet holes. I fixed my Lumenocks and put them on and shot. Perfect arrow flight. I decided to throw the STS on and shoot an arrow and I noticed the back end of the arrow wobbling. I shot through the paper again and yet another nock high tear. I took the STS off and have it sitting here. I really like the way it works as it removes pretty much all of the little noise from the bow, but if it is going to entirely throw the bow out of tune it is worthless to me. I don't know why I never thought of it before, but it would seem as though the STS would really throw off the nock travel of a bow. The string is going to stop at the lower end of the bow but at the top there is nothing preventing the string from still moving forward. Maybe I am way off here but if anybody has any input I would be glad to hear it.