Over the last 20 years, I've used many 3 and 4 ring set ups on heavy recoiling handguns with T'SOB and similar Weaver-style bases. I've NEVER had a Leupold, Burris or Bushnell 3200 scope break or slide yet. The SSK screws may be stronger, but functionally, I've had the same satisfactory results using SSK, Leupold, or American ( before Leupold acquired them) vertically split rings. Definitely use 3, and don't be afraid to use 4 rings, and TIGHTEN those screws on the .45-70, .375 JDJ, .454, .475 L, .500 and similar boomers. With the Leupold and old American, I use the Medium height, but none of my guns utilize full length ribs. When the scope I'm using and the base lend themselves to it (a Bushnell 3200 and a T'SOB on a Contender, for example), I use a lot of 4 ring set-ups.
My own experience with 2 ring conventional set-ups of any flavor was mostly unsatisfactory above the .44 Mag level when it came to scope rotation and sometimes, fore and aft movement.