So I had a really dis-orienting experience this past weekend on a four hour run to and from Green Bay, WI. I had, alternately, ear buds (no tunes) or actual ear plugs in, to cut the wind noise - my current half helmet obvious does zip for me. On arrival, my hearing was completely messed up (volume, tone, etc) and it appears that the wind noise somehow synchronized with my already existing tinnitus to complete scramble my auditory sense. Very strange as this has never happened before even on very long runs and without hearing protection.
Upshot is that I clearly need to cut the wind noise and I'm soliciting recommendations on a full face helmet, likely with blue tooth capability, if only to hear my gps. I appreciate any feedback others may have in this area!