I don't think many here are as picky about their piano sounds as you and I are, perhaps, Mo..!
yes, I can play mp4's, and don't forget that SMF of you playing your E60. You might be surprised to hear what the difference with the E60 and the G70 actually IS...
Don't worry about trying to impress me with your chops. You'll probably do that anyway, but we'll treat it strictly as an opportunity to compare piano patches, OK?

Solo piano, no track, simple short piece, lots of dynamics. OK?