Yes true the thought has crossed my mind...what if this damn thing doesn't inflate when I need it to?! Last year for kicks I pulled the cord on my manual Mustang PFD. Yup it worked!! I was a bit shocked when I went to buy a replacement CO2 at it cost like 40 bucks
With the newer ones they have a visible gauge so you can see the pressure level. My old school one does not.
I'd like an inflatable PFD as the foam ones are seriosuly uncomfortable to fish in!! Not so bad driving the boat but try and stand and cast in the thing for a few hours and you will be cursing it, esp if it is warm/hot out!!
For me I think the way to go would be to put an inflatable on at the begenning of the day on the Fraser. If I had to do something "risky" like jusmp out of the boat in shallow water to try and clear a plugged impellor or whatver, I would probably put a regular foam PFD on.
I find right now I am constantling taking the foam one on and off. I'll have it on when driving, then anchor up I'll start to get hot/uncomfortable and I'll take it off. Sometimes when driving I'll realize, oh crap I forgot to put my lifejacket back on! they say the best life jacket is one you'll actually wear, and I find the foam ones are way too akaward to fish in for any length of time. IMO the way to go is to buy a quality (Mustang) auto-inflate PFD and don't take it off.