I have been logging both of my vehicles with the E38. I've seen as much as 10 deg KR, but the logs show the main table being referenced (I am logging spark state). Fuel in my area sucks, 90 octane and it's crap, so I expect to see some KR, but now that I am not seeing the low octane table being referenced under these KR conditions, I'm just wondering when, or if the low octane tables are ever referenced.