The "use fastest transfer method" setting is in TiVo Desktop 2.8.x, not VideoReDo. KMTTG is a 3rd-party app that can download directly from a TiVo and process the files into various other formats.
VideoReDo uses the decryption filter that's built into the TiVo Desktop software, so unless Desktop or VRD is really out of date it should work even when using transoprt stream downloads. TiVo has officially stopped offering the free version of Desktop but you can still download the latest version.
http://assets.tivo.com/assets/exe/ti...sktop2.8.3.exe