First, thank you OminouSS for posting details and pictures and your feedback. You answered a bunch of questions that have been floating out there for a bit. So, Thank you!
---> The stock pads are basically equivalent to the Ferodo DS2500, which is a medium duty autocross pad. It's not suited for track work. No big surprise you smoked those.
---> What do you mean [some undisclosed] track pad "chewed to shreds" the OEM rotor? What does that mean? Some of us 1LE guys with the 370mm rotors are finding the OEM rotor starts to heat-crack after a few track days using high mu track pads. Is that what you found too?
---> FYI, Carbotech and G-Loc will make pads for any backing plate, you just have to send them example backing plates as a starting point. Not a big deal at all. Also, with the 1395 backing plate, you can already run Hawk DTC-70's. Looks like the 6g ZL1 pad shape is the same as the C6 ZR1 pad shape.