I like this approach. Stick with SASS rules for SASS shooters (no 1911) but offer a WB match to run concurrently. If we had more interest in WB locally I would consider adding that as an option at Doc Holliday's. Unfortunately WB is currently not much in demand and is only sporadically offered at one of the local clubs.
I think the requirement that the rifle be large caliber discourages many prospective WB shooters. Most local shooters use .38 special. By adding the rifle requirement prospective WB members often have to buy at least two new guns and often three. Add in the need for reloading equipment and components and you have a substantial increase in the time and money needed to join the game.
In my case I already have a 97 and a 1911. I have reloading dies for 38 sp and 45 ACP, plus all the components. If 38 sp were legal all I would need to buy is the leather. As it currently stands I would have to buy a new rifle, new reloading dies, a different caliber of bullet and new brass. That's a $2000 dollar investment rather than a couple of hundred, not to mention keeping three different calibers sorted and loaded.
I wonder what the rational behind the WB rifle requirement is....?