I have the Ear Zonk G-Cush and Grado G-Cush and I actually prefer the Ear Zonk. I like the softer material and they do not have that scratchy feel to them. I cant detect much if any SQ differences and they fit the same as well.
On another note I got a Black SR325 in today, thinking whether or not I should make my ghetto HF2 project out of them (replace plastic with wood; the wood is being sent to me thanks by a certain awesome Grado buddy way up north).
Did you get the black SR-325 from Simon?