Hi. I recently picked up the X5s and am generally pleased. I have, however, suffered from some mild shocks to my right ear while walking. I can only assume cold, dry air + lots of wool and friction... Or could this be a fault with the headphones? If it were simply a case of static, I would expect shocks to both ears, but it is only the right. Thoughts? I have not experienced this with other headphones, but the X5s are my first IEMs and I'm definitely going through an adjustment period... Thanks!