Just an update for those who are interested in a Seidio holster. I decided to try the EVO 3D since it has almost identical specs to the Rezound (and recommended by Seidio support even though they wouldn't guarantee it would fit) as well as the Incredible 2 Surface holster. I figured I would return the one that didn't fit. The EVO 3D fit perfectly!! It slides in easily and locks. It also fits both batteries (the extended is pictured). There is a slight gap between the face and the holster but I can't remember if my past ones fit like that as well. The Incredible 2 fit, but as mentioned you had to pull the sprint clip to get the phone in. The holster feels really good and now having the extended battery doesn't feel as bulky. I hated carrying it around in my pants since I never had to before.