Questions about creating spark advance table

[H_Krix]

I apologize in advance if this is somewhat braindead, but all the evidence I've been seeing is contradictory to the notations in spark advance configuration section of the manual.

It states:

Below 100 kPa, we add 0.3° per 1 kPa drop. So for example, if our total spark at 100kPa and 4000 rpm was 36°, the advance at 50 kPa would be:
36° + 0.3° x (100-50) = 51°

and the advance at 45 kPa and 800 rpm would be:
16° + 0.3° x (100-45) = 32.5°

Despite this, almost all the tables I've looked at for spark advance on cars similar to mine (1975 BMW 2002) show the highest advance around 36° or so, regardless of kPa. If I were to follow the rules set out above, I get a 60° advance at 20 kPa... Is that correct? Again, most maps I've been seeing have the advance at a constant 36° from 3500rpm to redline. What am I missing here?

Edit: Running MS-II, PCB V3.0, Code v.2.68 (not certain of that last one, don't have my tuning machine in front of me currently)

[H_Krix]

However, starting with a table that is grossly wrong will take longer, and has a somewhat better chance of damaging your engine.

Right, thats really what I'm trying to avoid here, especially since this is a fresh build.

That being said, is something like 60 deg advance safe to run, since thats what the manual suggests?