I'm really wanting to try these IEM's but I'm worried that they may be uncomfortable for me. I've never tried IEM's that actually sit inside the ear. I have Monster Turbine pro golds, I've had Klipsch S4's. Both are comfortable but they stick out of the ear so no problem. Looking at the rectangular shape of the SM3 has me worried that they may not fit in my medium/small ears. Also, tips that are most comfortable to me are medium size single flange type. Do you have to have big ears for the SM3's to fit comfortably? Thanks!!