Well Switched to the NGK 4212 ILFR6G-E from the SILFR6a and my Accessport is back to normal after logging my last 4 power pulls on wot with out flickering or logs split in two.
I did not have any problems logging when running on the 6aix-11, installed 6a's plugs an my accessport started flickering, replaced 6a with 6g-e and I'm back to logging without issues. Hmmm...
This is on a 08 Outback XT.