From the ways I've seen hollow cores break, I'd imagine that they'd snap under pressure from large drops. I've seen and met people who have broken them in under a week. Eagle used to be on top of their game but after all these other wheel companies came out and they started making District parts, it seems like they've really slipped out of the wheel game.
I'd recommend 841 wheels or anything made by ScooterZone. I'll be trying VertX wheels next, though.
And for the people who say "you get what you pay for," bullshit. I've broken more Protos, Phoenix wheels, and Eagles than any other wheel I've ridden.