I have been duoing with a 65 Druid and she needs GRWs as well...So we go to BoT and duo nameds, Oreen, Hreidar, and Laef mostly....We haven't tried Gaukr, but really don't think we can duo him, since my DPS is not all that (69 bard) lol....But you don't need a group really to do minis in BoT, they aren't really that hard...One night she got 2 GRWs off 2 nameds that were up, Hreidar and Laef =) I hope this helped. Of course it all depends on the gear you are wearing too....