I have the Katana50 and yea I know it has overdrives already inside, but I have been thinking about getting either an overdrive pedal or a distortion pedal to put in front of it. I play hard rock with drop D tunings. Just thought an analogue pedal would sound better. I'm not think anything like the metal zone but I have been thinking about maybe a MXR distortion pedal or mybe one of their overdrive pedal or maybe something from Electro harmonixs, or could you guys suggest another pedal along those lines? Just trying to get the great4st tone possible since I will not ever join a band because i'm only a bedroom guitarist....what do you guys think?