Would never run 25r's with that much current. Not only would it be dangerous, but pointless. You're losing a lot of the power to voltage sag. You're going to get terrible performance out of a way-too-hot battery. All that you're doing is putting yourself at greater risk by trading voltage for current.
I wouldn't even run VTC4's past 25 amps. Don't get me wrong, they're great batteries, but they aren't all that they're cracked up to be for that super-high-drain shit. 30 amps is beyond their optimal range and there will be a noticeable drop off in performance. Just because you can run them there doesn't mean that's where they want to be.
If clouds are what you're after, then you'd do well by sticking to builds that your batteries can power without struggling.
Right now, I believe the coolest running high-drain battery you can get is the LG HB6. If you want something that's really made for high-drain and nothing else, that's your battery.
