Dean A - want an excuse to refinish the 660's stock? With a little elbow grease those 'square' edges can be gently rounded off, enough to feel comfortable carrying, while still snug on the front bag. Will also remove the original bowling pin plastic finish so a nicer (IMO) oil finish can be applied. At the same time, remove the hard plastic butt plate and install a new recoil pad. That should mitigate objectionable recoil...does for me. Homesteader.