Sounds like ya done good to me. I like the idea of recording audio better than video--no worries about field of vision, lighting, etc. However, I would definitely want some kind of hands-free setup, even just a lanyard around my neck (with a breakaway link in case of snag or grab) or have it mounted to a velcro-type wristband, so I'm not juggling a gun, light, phone and recorder.
Although I am a good juggler.
Velcro was invented by a Scot after picking cockleburrs from his dog. Or maybe his kilt.