ron, they are micro midas 3,thanks for specs.deezlin,brace height measures 6 3/4,ata measures 31 3/8on one and 6 1/2 , 31 3/8 on the other.I don't know how to twist the string.If you can give me some help I would appreciate it.These bows are a couple months old only so I don't think they've stretched,I suspect they've been like this but I had'nt noticed it til recently.