Yes, I hope they work for me. This post describes dsnuts opinions:
In it he says:
Ya you are late to the pad party. We got more than the stock pads these come with going on. We first tried some velours. Sennheiser HD25 velours fit but not the best optimal sound from them. Then there was the ATH velours bought on ebay. Flattens the bass end. Then there is the HD25 pleathers which clears up the mids form the HD velours and then there was the ATH leathers which ends up sounding perfect as it will get.
We are experimenting with different pads. Yes sound tuning through pads. Each pads brings a different sound to the HA-S500. They all sound pretty good to my ears but some change the stock sound much more than others. The ATH leathers opens up the sound channel. Lessens the bass a bit with a bit mid forward sound which ends up sounding fantastic. I think you will enjoy these headphones as all of us have. This pad swap is just extra.
That was essentially what I initially based my ATH leather spontaneous purchase on (that, and the fact that they are so cheap, so not much to lose if they don't work out). Dsnuts is saying that the ATH leathers "opens up the sound channel, lessens the bass a bit with a bit mid forward sound". That sounds good to me. But unless I am reading Doc wrong, Doc is saying "and to me increase the bass even more, provide good bass impact but lean more toward a fun V shaped sound with mids and vocals more distant.". I won't be thrilled with the ATH leathers if they make the mids and vocals more distant. But, I guess (hope) I will find out soon enough!