mahjong
Contributor
Yes, it would float up, and when you ascend or tip your rear up quickly the valve will bang, or slam, back down against the plate. And who knows what happens in a rough surf (shore entry/exit) or when you jump off a boat? And you might have to reach behind the plate to find the cord. Or the cord could get pinched or snagged behind the plate and involunatarily dump your air. Bad design, in my view. Though in most instances it will work fine.
Not sure about you, I was only joking.
The exhaust valve would be floating up, away from the plate though.