FWIW, I did the mod, but I don't have an effective way to AB test. Tried one ear at a time, but could not detect the difference. Went ahead and removed the foam

FWIW, I did the mod, but I don't have an effective way to AB test. Tried one ear at a time, but could not detect the difference. Went ahead and removed the foam from the other, and the increased sound stage sounds great (though without an accurate test it's difficult to say how much of a change is placebo vs. noticeable).