Are they selling a 1 5/8oz. straight 9 load? It looks like the 9’s are 1 ½ oz. and the 7&9 blend is 1 5/8oz. The only reason for the blend is to be legal in states that have a minimum pellet size. The increased payload is to keep pellet count up. Both loads are 1100 fps. Plenty fast for TSS. Go with the straight 9’s if legal.