The short barreled (<7.5") Supers use the smaller XR3-RED grip frame of the Blackhawks which has been in production since late 1962 - early 1963. Prior to that, the slightly smaller XR3 grip frame had been used.
The current Lipsey's revolvers are using the "new" XR3 grip frame of the New Vaquero/Montado which is very similar to the XR3 grip frame of the earliest Blackhawks. The 50th Anniversary Blackhawks used this grip frame as well.
The Blackhawks (new and old), Vaquero, Single Six, Old Army, Super Single Six, and short barreled Supers still use the XR3-RED shaped grip frames.
The 7.5 inch NM SBH and the SBH Hunter use the same larger sized grip frame although the trigger guard is different.