70-75 i ran UK dragon rooms runs, more or less u kill upto first boss rinse repeat. was getting over 400k/hr rested doing that. boring as hell but these things must be done. after that i just did grizzly 7 dailies and ran dtk(nice to be proficient in running here as its a emblem mine at 80).
Probably not the best way but its what i did. Hope it helps.