With SoR, you can boost up a char to lvl 80 and xfer him to another server. If you decide to xfer a lvl 85, you cant boost another char up to 80.
here is how to do it:
1. create the lvl 1 char or log on the char you want to boost to 80. make him transfer ready.
2. logout ingame, go into battlenet. choose realm transfer + lvl 80 boost to the char. click continue, but dont press the last button before transfer.
3. login, get 20k+ gold (or less, depends on lvl) on this char, so its over the transfer gold cap. logout.
4. press okay to the transfer. an error will appear: char has too much gold.
5. wait a short time. log on your char. he will pop up to 80.
6. now look at your SoR history. You split up lvl 80 boost and free xfer!
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as you can see on the screen, i already got lvl 80 boost and can reclaim free xfer.