I don't think the trapador style would be strong enough to keep you feet from sliding in like the cages. I think they were designed more to keep your feet dry warm and protected from wacking things. I have no idea just looking at the pictures those seem worse for bucking type situations. Looks like you could slide under the leather then get locked in. I wouldnt mind the cages .
I guess my ideal stirrup would be 5 inches wide, 3 inches front to back, cages and light weight. I have some brass ones like that but they weigh a ton.