I have the auto version and I love it. It's alot better than the manual in my opinion. For example.... what if you slip and hit your head and then fall in the water, then are you going to have enough time to pull the cord??? NO.... Yes they will go off in storage but there is ways to prevent that. The only reason it went off is because the storage got moisture in it. To cure that just get some of the little dehumidafiers and put in there with it. They only cost like 4.99. I have them were I work. Mine has never went off on me.Except when i tested it and jumped in the water.Very comfortable and I highly recommend it.

Tightlines,
Greg Stacy