I've used quite few different styles and brands over the years, my choices are Talley's, and the Weaver bases and detach. rings(This is what I use on my Encore). IMHO the Weaver mounting system is as strong as any out there and the price is right. IMHO also, the Leupold or Redfield single dovetail style is probably the one type I would avoid if your prone to take your scope on and off more than a couple times. The dovetail will wear with excessive twisting and make holding zero questionable. As far as tapping the barrel for x-tra holes I don't think that it's necessary, I've found it is just fine and plenty strong enough the way it is, at least on my rifle, an Encore or Contender handgun may be a different story though. Just my 2 cents. Good Shooting!