The RC8Be has 3 battery straps. I'm not sure how you managed to bend a lipo with 3 battery straps. I routinely put my rigs 15-20+ ft in the air and I've never bent a soft pack like that. At least not without them coming out of the rig. I've had em puff on me from blunt impacts but never bend. I'm...
Hardcase are only better for bashing if they actually come out of the battery tray. In terms of blunt force trauma, it doesn't matter if the lipo cells themselves are smacking against the battery tray or the inside of the hard pack. If you're concerned about blunt force then put a piece of foam...