RGH2 Zephyr success. Followed Josh guide and use timing 69.30.3 boot time quickest below 10 secs longer below 20 secs and I'm happy, encounter problems couldn't boot the solution swapping the glitch
Xbox 360 s RGH2 | Aukro
Tutorial - RGH 3.0 Guide - Phat + Slim - Includes Quick Tool! | Se7enSins Gaming Community