The theory of the "Short" mounted plate is not a new theory but rather a new approach to the old style. Traditionally the plates were one or two sizes smaller and mounted forward on the boot. The short forward theory started in the 70s and 80s when short track speed skaters wanted to turn sharper. It's simply mechanics: a shorter wheel base will yield a tighter turning radius.
Avenger/XK4 DOUBLE ACTION 45 Plate Sizes for Mens American Boot Sizes