#2
Depends on a number of factors including what's on your pedalboard, but it'll work anywhere in the chain - just experiment.

I'd try it as the last in your chain, though if you're using other overdrive pedals before it, it might sound different.
#3
depends on what sound you're looking for. if you're looking for a clapton/jeff beck kind of 60's hot british amp sound, put it right at the end of your chain.
Quote by patriotplayer90
Lolz that guy is a noob.

Egnater
Leave it on the press, Depress Depress Taboot Taboot.