fwiw, bit strange companies don't seem to put the effort to design pads. You'd think they'd want to maximize performance, and it appears that the stock pads pretty much suck compared to most 3rd party pads out there. The cost difference between manufacturing their stock pads vs 3rd party pads shouldn't be that high, and since they affect performance so much, in cost/performance it should be an obvious improvement... Some pads are 40$ new, so even adding 20$ to a 300$ would be nothing if it really improved things that much...!
AKG Q701 had a sticker mod where they put a sticker to cover a hole/port, and modders found that removing the sticker improved performance quite a bit... But in that case, it's not even of adding or improving something, it's just not sticking on a sticker that hurts performance!
Don't know what they're thinking sometimes! Well either that, or they know something we don't... Or maybe the effect of pads isn't that great? There's many positive reports about upgrade cables, while many will say that it's just placebo... Only having stock pads on my headphones, I wonder if it's really all that better or...