1. Dont start off Getting 1000GS every game Start slow.
2. Make sure you order your ACHIEVEMENTS in the right order (Example: Go to XBOX.COM or MGC to Check someone's else Achievements and copy the oders
2. Always put a Date + Time on achievement (Not neccesery for all achievements)
3. If you have done that Save your profile 3x in profile editor 2.0 (Not neccesery)
4. Rehash & Resign 3x on Horizon (Best way)
5. If you done that Put your HD to XBOX and stay OFFLINE for about 20min, and after 20 min get online on xbox livefor 20min after 20min you can shut down xbox
6. After doing that go to XBOX.COM and loggin to make sure you got you amount of gamerscore
7. Delete your profile (Not everything only Profile) and recover it back so the picture's of the achievements load super fast (legit)
8. Get a achievement on any game (legit)
9. Congrats, you have manage to get your GS (ALMOST) Legit.
I Hope this help's guys! 