Yep that is where mine are located.
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I was wearing it at this con. To be honest, the microphone setup is an additional thing which is really a pain in the ***** to setup. I only wear it at cons when I might be walking alone or through a bunch of people and situational awareness is pretty important. For all other troops this is really a non-issue as I'm mostly standing still with other characters with people walking up to me for photos...or doing some basic interaction with the crowd.
Keep in mind a few things about the bell position. Do I get feedback occasionally when I move my arms...yes. But I only really get it when I LIFT my arms...which I rarely do. The setup is a pain mainly due to the wiring involved. I keep my microphone piece in a plastic box I created in my side belt pouch because I have my Aker sitting there as well (and my microphone runs down to it to plug into the Aker). I have two long wires with the velcro placed on the microphone heads that are placed under each bell that run from my left pouch. This has to run under my vest and be attached after my shoulder bells are put on my vest (I use magnetic attachments for my shoulder bells). Under both my shoulders at the top center point on my flak vest I have two pieces of string which I use to tie to the microphone wire so it won't go all over the place when moving and stays hidden.
This system works fairly well for me, but it requires a lot of effort to setup for me and as such I only use it on about 5% of my troops. Is it better than not wearing a helmet...no...but its far better than a simple external microphone pickup. On the other 95% of the troops you can hear generally when people call out for you...but you don't have any idea from what direction. This is not important when standing still and people are coming to you for pictures.
