I keep seeing manufactures posting junk about RAD and I'm seeing pictures of people wearing their tanks backwards with their first stage facing OUT, what the hell is going on? Seems like a jackass thing to do. Think about this, you are in a overhead environment like a swim-through, cave or wreck and WHAMO! You smack your first stage. It would seem to me the better option is to have it somewhat protected by facing forward... what am I missing is this backasswards new trend? Here is a picture Scubapro has up on their F8kbook page, seriously now... apparently this is what "RAD" is all about. PASS, I like diving the OG way, thanks anyway.
https://diveavelo.com/aveloSystem.html