Sure has been another wet Summer AD (think that's 6 in a row now) & you seem to have had the worst of it down there.
I quite like some of those vests too, but same as you, I probably wouldn't use it enough.
If i'm taking a couple of cams/lenses out I just use the small slingshot on my back, but usually I go out with 1 cam & lens attached so I don't end up lugging the extra weight around.
I did buy a cheap camo. camera & lens waterproof cover so I don't have to rush off at the first sign of rain if i'm already out, but with the weather we've had recently I aint even started out!
Thinking about it, I suppose `clothing` can also apply to your gear, again depending on seasons & location.
Do you guys in dry/dusty countries, or wet, or very cold places use any extra protective products?