Not sure if the OP has made a decision or not, but I just got a pair of EPH-100s.   They honestly don't sound to shabby out of the box ; the reviews sum it up pretty well. Fun, clear instrument separation, quick decay in the treble, plenty of rich bass. Microphonics are all but eliminated if you wear them over the ear which can easily be done. Personally, I haven't had a problem with the tips or suction being uncomfortable. Haven't had a chance to to try the GR07s...