Echoing another poster, I would also advise using only a pressure-activated PFD. We upgraded about 20 years ago, to a Mustang model ($$$) with well-designed harness. We had a previous type with the "pill" type activator, inflate inside the boat, due to accumulated dampness. Other friends had theirs inflate while working foredeck in rough seas. Really got their attention, as the saying goes. 
Nowadays we try to never fall OB because it costs over $65. for a recharge kit. (!) Sort of a financial incentive to stay aboard! Since it's relatively easy to wear, due to being compact, I wear mine for day sails and also for working round our docks at our DIY yacht club.
I once watched a friend fall in, and his "HIT" jacket popped him right back up instantly, soaked but entertaining.
"Good Kit" as they say in some venues.
Nowadays we try to never fall OB because it costs over $65. for a recharge kit. (!) Sort of a financial incentive to stay aboard! Since it's relatively easy to wear, due to being compact, I wear mine for day sails and also for working round our docks at our DIY yacht club.
I once watched a friend fall in, and his "HIT" jacket popped him right back up instantly, soaked but entertaining.
"Good Kit" as they say in some venues.

