ST69 I couldn't agree with you more!!!!
In the for what's it worth department I've almost drowned three times; none of the experiences were pleasent. In real moving water conditions a 'self enflat. PDF' is just a heart beat away from "last rites."
Two of the times I had a full float PDF, the (first) I didn't ... and I just got stupid lucky that there were several other folks to pull me off the up stream side of the rock.