Did some comparisons to other headphones:
L to R: ypsilon, woody 225i, modded 225e, RS2e, Nhoord
Ypsilon: best range and most balanced from bass to highs, most fun to listen to
Woody 225i: smooth highs, not quite up to the RS2e but close, bass is better than RS2e, wood cups + dynamat + sorbothane really improve the stock 225i
225e (dynamat + sorbothane + felt): great mids but a touch to forward at times, highs are extended without being harsh, great sound stage compared to the ypsilon & nhoord but still short of RS2e
RS2e: smoothest mids and highs, bass does not go as low like the ypsilon, nhoord or woody 225i but best sound stage
Nhoord: a touch behind the ypsilon in range, highs are not as present or extended as the other 4
All are quite good and it comes down to what your preferences are.