Need a little advice on the Mernickle PS6 holster. I am looking at getting one for my Ruger Flattop Bisley 44 special. I know this frame is smaller than the Blackhawk/SuperBlackhawk. If anyone has ordered this holster did simply specifying the model gun get the correct holster. I ask this because I ordered another makers holster specifying it was for the smaller Flattop frame and it swallows the gun. Luckily it works for my Superblackhawks. Thanks!