yeah, the 17 hornet and 17 FB aren't really direct competitors. The hornet will be much less noisy - more mild-mannered, and the FB will be more intense and flat shooting.
The hornet will get probably twice as many shots out between cool-downs, thanks to a lower operating pressure and less power consumption. Don't discount the importance of quietness, too - constant blasts really fatigue the shooter, and make the shooting experience less pleasant after extended sessions. Plus, the farmers and owners of gopher fields may appreciate it as well