How do I increase the tension on the joints of my FlexTILT Head 2? Ashley July 25, 2018 22:08 Follow Please see the video below for instructions on increasing the tension of the joints on the FlexTILT Head 2. Related articles HeadPLUS How can I attach the FlexTILT Head 2 on the SurfaceONE? My SliderPLUS is not smooth as it is used to be. What can I do? SurfaceONE Comments 0 comments Please sign in to leave a comment.