I'm not sure why the editor would need you to transcode the footage for them. You should be able to take all the Pro Res footage on a drive, and send it to the editor. If they are working on an older Windows machine, they would just need the Pro Res Windows QT codec, and then then could simply import at the desired resolution. I.E. - If you're sending them 1080 23.98 Pro Res footage, they can import at DNX HD 115 or 175 depending on what quality they want to work in, or i'm pretty sure with v5.5 they could just AMA link to the footage in a matching project, and be up and running in minutes, instead of waiting for the long imports. Their choice. Hope this helps.
Kevin P McAuliffe
Creative COW Leader