AmStaffer, our standard has not changed in size, ever, that I know of.
A proper male of 26 inches has long been a 115 to 125 lb dog, and I have seen a 140 lb dog who was not over 27 at the shoulder. You can certainly find those 25" dogs who are 100 lbs or so, but they are about as common as the really big guys.
What we really want are dogs in the midrange of the standard.
A 23.5" bitch will be around 85 to 90 lbs, properly proportioned.