Drives can create cool tones, but can also generate a lot of noise. In presets where the drive is kicked in for a solo and gain boost the noise can obviously be controlled by a separate noise gate. The same noise gate will however kill the ability to roll off the volume of the guitar when the drive is bypassed. Of course scenes can toggle both the drive and the gate blocks, but for those of us who are using drive blocks as stomps an integrated gate in the drive block will be perfect!