I’ve had a lifejacket of one sort or another for years, including the ones that inflate from a gas cartridge.
More than once I’ve tried them out by donning a pair of swimming trunks and the lifejacket, jumped into the lake and then inflated it. They worked very well. Fortunately I’ve never had to try one in a real situation.
But I always wondered what would happen if I fell overboard and struck my head on the side of the boat or some other object and lost consciousness. And there was nobody else around. The ones that inflate via a pull cord wouldn’t be much use then would they.
Which is why the fully automatic version from Harrisons makes such good sense. It inflates on contact with water and the above fears become very much reduced.
As far as I’m concerned, for the sakes of an extra tenner for the automatic version, there is no contest.
What price your life – £ 99.00? Never go on a boat without a lifejacket.