Yes, the P6T Deluxe V2 is moddable - I have a Dell SLIC in my V2's BIOS now and it's working fine. Now if only I could get this damn Gigabyte 965P-DS4 BIOS to mod properly...
Like I said, it's not working correctly using the tool. It will go through the process with the original bios, but the resluting bios doesn't work. This has been proven multiple times already...