In my experience the stringfollow bows load up a little later in the draw, but its subtle. Speed difference is only 3 fps at best as was explained to me by Steve Turay at NM, pretty well imperceptible. SF bows seem like you can be a little more liberal in your release, as the string doesn't have to travel as far to rest, making the whole system more stable. It's kind of the complementary effect of running higher brace height. Pulse in the hand seems a little gentler. I shot a NM Classic and a Shelton side by side for a month and honestly both are sweet bows, the Classic seemed a little snappier and lively, but I came to prefer the Shelton for sure. Easier to string push-pull too.