Constantly, when I need a sound different from or in addition to just turning the amp drive up. King of tone, klon, TS, fuzz face, etc, depending on the sound I'm going for. I have different boosts on each channel of the drive 2 block that I can cycle through by holding the per-preset footswitch I have assigned to bypass drive 2. I do have the amp input boost assigned to a control switch assigned to the hold function of my "amp drive" per preset footswitch but I rarely use it.