i dont really know the numbers. i use the bigger body shad one in shallow and deep versions. i have a couple of the middle size minnow body in both shallow and deep but im a bigger fan of the shad shape. a little more color/flash/vibration and the lips on the deep minnow body ones are flimsy by comparison and ive broken a couple off by pounding too many rocks. i have one of the bigger minnow body ones(i would assume its the xr 10) and it catches just about everything. i have what then i would guess to be an xr12 that i use for muskies also but i havent caught anything on it yet.