Could I hear people's oppinions on these tune altimeters? I am looking to purchase one or the other. I am looking for both to be used as a visual altimeter, but understand that the neptune also give audible information under canopy as small chirps, can these chirps be heard if you are wearing it on your wrist or does it still need to be mounted in the helmet? Please let me know so that I can make my purchase soon. Jump at The Skydivin' Place
http://www.skydivepa-md.com