Admittedly, I don't really need the power of the Burkey...but I'm wondering about the sag options on these two. I still recall the extremely pleasant sound I got from an OD pedal with a bad battery when I was young(er!). Don't even remember what pedal it was, but I'm gonna have to go through some to see what I can find. How is your experience with the sag outlets on the PP/Flatliner? The Flatliner can adjust both voltage and resistance, the PP only voltage. Do I need both? The price is the same over here, so it's only because the Flatliner is so huge and heavy I'm considering the PP instead... Does anyone use the Flatliner in a rack btw? Could such a powerful transformer cause problems being next to something like i.e. a Switchblade?