A high proportion of the old drums that come up for a bearing edge redo have an inferior seal at the bearing edge. In terms of importance to the sound of the drums , the seal at the bearing edge trumps the actual location and conformation of the bearing edge. Most bearing edge work reestablishes a seal and that is the majority of what accounts for the improvement in performance but the goofing around with the bearing edge gets the credit , because it is currently trendy . The bearing edge conformation ,no doubt makes a difference but sealing the head and providing adequate correct venting are the first orders of business in bringing a drum up to it's potential.
If you are planning to use low tuning and or, one or both ,single ply or ultra flexible heads, the vent hole needs to be big enough to allow free passage of pressure. Excess back pressure can lead to air slip past the bearing edge, or if the edge is really secure, head back pressure, which f*s up the whole shebang and all the bearing edge kerfuffle is moot.
I'm not discounting the importance of bearing edge conformation and location but the quality of execution and intended use are more important.
One of the drum companies that I have some experience with , in a number of restos , changed the bearing edge from an outside , tapered 30* in, to a domed half round, without changing any other parameters. That issue wasn't as critical as the quality of seal and the venting x head/tuning ratio.