The GST's I've used go into neutral during a shift (which takes 1-2 seconds). It can be a surprise if you are on a slope with a load. On a place that's flat, you might never notice it but if you have a lot of slopes it could be an issue. Maybe the new ones are better on this point? Other than that, I think GST is superior for callibrated spraying, or other jobs where exact speed is important.