I updated my 1008 to V0156, and after two DVD-R burns, it appears like the burn quality may have gone down.
On the same DVD-R media recorded at 2x, K's Probe is showed the following:
PI Max= 46 , Total= 36625 , Average= 11.837
PO Max= 23 , Total= 817 , Average= 0.264
PI Max= 496 , Total= 262645 , Average= 84.888
PO Max= 26 , Total= 2999 , Average= 0.969
FYI, PRINCO media, which I know isn't the greatest quality.