I purchased a Weigand rail to mount to my Ruger Super Blackhawk .454 Casull. One hole uses the rear sight hole, but two more holes must be drilled which are about 1/4" apart. I called Ruger and they didn't recommend doing it because they have never tested such a set up and said it could weaken the top strap. The guy at Weigand said that is the only rail they offer that would work on a .454 Casull because of the recoil. Do any of you have any experience with whetherit would indeed weaken the top starp? Thanks.