I've been contemplating for some time now getting into a sling style hunting system, most likely the New Tribe Aero Hunter Evolution. So is anyone out there using one of these or something similar? It's looks like a sure bet for a light weight hunting solution that is quick and versatile but at the same time looks like it could be awkward and maybe uncomfortable on an all day hunt, not to mention the $400 price tag. I'm just curious if anybody uses them in Iowa and if so what's your opinion?