Thinking about passing on the Rezound and keeping the Bolt. Now need opinions about the right extended battery to go with. I have my eyes on only 2. The after market 3500mah and the htc 2750mah. Which is best to get the best out of the battery? I don"t care about the price, only quality. Please sound off if You have experiences with either or have heard the good, bad, and or ugly. Which and why? I thank you in advance, Thunderbolt Fam. Please excuse the bold type...