I guess both cases are valid and combination of G-Cush on the PS500 as well as more efficient drivers on the RS1 "Red"
probably amplified the differences. I guess time to swap back out the G-Cush for more a-b'ing! I probably put about 5-7 hours on the RS1 "Red" now (my earlobes hurt) and it's definitely opening up and the musical airiness is much more detectable. One thing I noticed is that it is much more unforgiving to bad / low quality recordings compared to the PS500 and noticeably easier to discern.
Oracle, yes those are chrome Grado PS500, sn #XX. Here's
another picture for clarification (kinda hesitant to post unrelated e-series pictures here). Unfortunately, I dont think I'm ready to sell at the moment... still enjoying the sound too much
. Perhaps in the future!