Only well above 1000 ipm, it starts to be worth measuring in G's. I was once standing in front of a small Enshu machine at a show and the table went sideways as fast as you could drop it. It's quite a thing to see. Even half a G is 11,520 ipm/second, so you're at 2000 ipm in ~.2 seconds. Japanese machines are the only ones I know of who talk about G's.