Yea I think that brands of batteries are kind of like cars, some have better luck with one or the other. Though they are in different vehicles, I notice no real difference in performance in the trucks between my Maxamps and Zippy LiFe packs except the Maxamps ones can charge much faster. They both perform similarly to the 6S NiMH packs I run in those trucks, but do have more punch of course. Although the 1050 packs in the Revo do provide slightly more speed than the 1200mah NiMH does. I think that has to do with the NiMH getting hit so hard at full throttle that it runs lower in voltage under load than the LiFe packs do. The Titan 12T does seem to be a power hog. In the Tamiya with it's silver can, it's much harder to notice and I run a 4200mah NiMH in that one to boot.

Man that sucks about the NiMH pack! I haven't had to claim a warranty for my packs yet, but I had a few questions about them and the response time was quick and clear. I'm happy with that for now, and hope to not have to claim a warranty on them. I would actually try for these though in hopes of getting a new one. If one of my Zippy packs died I'd just toss it and buy a new one haha. Either way, we all use what works for us I suppose. I've always subscribed to the you get what you pay for idea. Recently I went against that rule with a Flysky radio system and Zippy batteries, which has worked well.

That's what I've always thought with ESC and motor ratings. Efficiency, wattage, and amperage isn't really very accurate. I think of it as a "Our number is bigger so our motor is better" kind of thing.