1st Hello.I finally brought my 1st stringer (used Eagnas flex 920. Had it for 2 weeks and after hours of reading and watching videos I got the confidence to cut my strings and do it myself. Afterall everyone says it easy lol. Anyways here`s my problem After starting the job stringing at 57 lbs, the string slipped through the gripper so I tried to hold it at a angle from the rear of the gripper, this only scuffed the string up to the point I would not use it on my racquet ( probably would break). How does the "String gripper adjustment screw work. I beleive mine is not the corrrect screw because it will not thread through. but if it did how does it close and open the gripper, I could not see the logic,. Oh and it was my only set of string I brought, went to the store only to find out they were sold out so now I have no good racquet..sorry for the long post.