What is the advantages of having a debug firmware installed to your PS3? Besides the fact that the debug firware have the additional debug settings menu. Does the debug FW doesn't have sigcheck? Anything else?
None, but you lose the ability to play Blu-ray movies and when you go back to Retail you have to update to a higher version... so really no 'advantages' at all unless you have a Debug PS3 and can actually use the Debug Firmware.