Heya! How my favourite people are doing?

So I have distortion related question. Recently I have acquired (after a long reading/researching) a new MXR Fullbore Metal pedal, it works fine and sound good, but my problem is that I cannot get a regular distortion sound using it; the distortion is always “too much”, which means work s fine for Death/Doom/Black Metal, but not Thrash/Heavy Metal sound that I want to get.

For example: I can’t get Metallica (Let’s say Lightning, MOP or Black album) sound, or Megadeth (Countdown to Extinction), or some Pantera... etc. which is the regular Heavy/Thrash sound.

How can I get this tone out of it? I can’t seem to play Thrash or Heavy Metal without sounding “over kill” or “too much”

My Gear:

Schecter Damien Guitar (EMG pickups)[br] Orange Crush 35RT amp[br] MXR Fullbore Metal pedal[br] Ibanez TS9[br] Marshall Gu’vnor GV-2 plus

Help, please! And thank you so much in advance. :)