Base timing and knock correction advance edits

In your knock correction advance, you changed the majority of the table to a maximum of ~6 degrees. When you went back to the base timing table, you only added the remaining timing to some cells. Particularly, 3.35 g/rev and 6k RPM had no change at all. Wouldn't this result in less timing advance than factory? How did you choose which cells to increase and why only those?

Edit for detail - right around the 34:00 mark

Don,

As a general answer, if old DA + primary timing was greater than new DA value + primary timing, then reduction in total timing would have occurred.

The general idea is using more predictable DA values makes it easier to look at the primary ignition table and know what the result timing will be, so that's often done during setup of the tune, rather than towards the end. Anything done at that point is generally meant to be a safe starting point, and more timing can be added later.