when I first started making wooden bows I used a sliding rubber pad style stringer( that I used on my FG bow) to string a bow and broke it, they obviously are not suitable for delicately balanced wooden bows and apply uneven pressures on the limbs, which is obvious to see when you look at it them in operation.... I have also seen many people stress a bow just as unevenly using both the step thru and push/pull method. Both of these methods require care, skill and practice to perform properly....in my opinion... A stringer that pullls the limbs equally with the foot in the middle is the only totally safe method and even then they must fit the tips properly,......