I used the t-mobile way with the auto root I found at XDA just dont remember the link but i have uploaded it to 4shared if you want it. Flashed with odin
CF-Auto-Root-jfltetmo-jfltetmo-sghm919.tar - Download - 4shared
CF-Auto-Root-jfltetmo-jfltetmo-sghm919.tar - Download - 4shared