I have them, and they seem to be bulletproof as far as I can tell.
They've held up to a Tekin T8/RX8 combo on 6S Lipo.
I'd say they're plenty strong enough for most applications, especially for just bashing, and the price was pretty good. Fastlane has great customer service too.
-Travis
Adults are just kids, with money.
Common sense, is not so common.