I am playing through a boogie dc-3 combo an love it. I really haven't planned on using distortion pedals with it but.....I have been using a fulltone OCD to add an extra channel to my amp. I am wandering if the v-twin would be a good choice to replace the OCD. I just want to have access to an extra channel or 2. I don't quite understand what it means to be a pre-amp pedal vs. something like the bottle rocket or OCD. Can I use it the same way and what kind of tones will it give me????