Yours sounds better and better. "A" tag, right? I think I know what you mean about the spongy feel.i didn't have a chance to compare both side by side, but i remember that Vibrato was very light, too. I bet if there is any difference, it is very minimal.
Vibrato had a bit more of the texture, more defined grains on the skin, slightly sponge-y feel (if it makes sense?) and shiny gold, or silver hw.
Mine is smooth skin and dark brass hw