Yes SS does have adapter plates, but there are a few of us who really believe in the four hole mounting.
I too am a little sad that some of these newer companies did not include it. It makes for a more solid connection to the board (though some say it doesn't).
I also like the on-the-fly adjustment. some ask, "why and when would i really need that" but i use it quite often, especially when i allow others to ride my board... but I even use it FOR MYSELF too, and not just for others.
***The ONE thing EVERYONE CAN AGREE on about 4 hole is that it cleans up the look of the (base of the) binding more than anything else, because there are no plates sticking out (as far) and no bolts on the sides.***