Hey ChicoSatis,
When you quad track - are you playing the part 4 individual times? And as far as panning, I've seen some guys go 100% L/R then around 80% L/R for the 2 remaining tracks(?).
I usually double or delay it (prefer doubling the part). Haven't tried quad yet, but have been wanting to. With that much distortion, are you using lo gain settings?