Even still, if this doesnt bother you, switching to Bluetooth mode makes this difference even more noticeable (the bass gets weakened considerably). I am a short wearer 11months out of year here in Texas working outdoors. The only problem is when for phone calls, there is no electronic audio and the nice-tight sound insulating fit in the ear means you cannot hear your own voice well -- very disconcerting. 5 for that, which I never wear, so Id suggest skipping that chart, unless they update it, and going with the high end of your usual size. I love it and Ill be ordering another one in a different color! Here on the EN, theres a very distinct analog sound signature (and noise level), so theres no mistaking the medium - but thats not necessarily a bad thing! Im not a techy, so I cant give you the pros and cons. I wish the mount came with some protective foam in this region of the mount so that there wouldnt be any metal bars rubbing on the spoiler but not the end of the world, I just wrapped some of the excess straps around that area and it did the trick. Just be prepared when they turn on they altert you they are connected at max volume with a loud long beep. Very nice well made.