Re: Stacking overdrive and distortion pedals.
There is no "correct" order. Pedals will interact in different ways based on the design/construction.
a) Low to high is the approach TYPICALLY if you want to take a high gain / low dirt signal, and goose the INPUT of the next pedal.
b) High gain into low is the approach TYPICALLY if you want to take a specific large amount of dirt and goose the AMP from the next pedal.
Dirt / Gain
a) L/H > H/L > Amp
b) H/L > L/H > Amp
But LOTS of othr combos work as well, depnding on the pedals at play. For example:
Max dirt into max dirt for pure sonic chaos. Or....
Pedal A is a thick distortion with lower mids.
Pedal B is a moderat overdriv with amazing overtones.
You run pedal A at medium dirt and low level into pedal B at low gain and moderate level and run it into a high headroom setting on the Amp's clean channel - and all of the grind comes from the pedals without kicking the amp at all. Or...
Two very high gain pedals, (both set to low dirt) one into the other to pimp slap the preamp tubs of a non modded non master Marshall into nxt week.
We can go on all day....
If boosting a cool dirt, low dirt last
If boosting a dirt pedal, low gain first
And AS ALWAYS - do whatever sounds best for YOU!!