The picture on the intro page shows I managed to get 983k. Using GHCheatSPAW Editor you can open the gh3cheat files then tell it when to use star power.
Note: Whammy doesnt currently have any effect in the editor or the new version of gh3cheat
The new version of gh3cheat (Called gh3cheatclassic.exe) can only use files modified by the editor as there is a slight difference to the format.