Please Dont Put Any Attention To Rodales Test,s, !!! Why Not Spend A Few $ More And Get Something That You,ll Actually Wanna Keep, Possibly The Last Regulator You,ll Ever Buy ,i Think Hereof The Poseidon Extreme Which Is Good In Any Enviroment And Poseidon Is Not A Company Who Changes Covers Every Year And Advertise It As The Latest Technology Newest Regulator Model. After A Few Years You May Get The Feeling That Your Regulator Is Outdated Because There Are So Many New Looking Models On The Market (scubapro,mares Aqualung)i Dive Since 1983 And Tried Almost Every Regulator On The Market But Nothing Comes Close To The Poseidon Cyclon,odin-jetstream Or The Extreme. Apex Is Owned By Aqualung-us-divers And Zeagle Make Fantastic Bcd,s But The Regulators Are Average. Look What The Pro,s Use ,i Mean Pro,s Not The Dive Store Employees ,because They Have To Use What The Store Sells At That Time.i Hope That This Information Helped You A Little To Make Your Decisions...take Care