Tespia is now OPEN!

I didn't say that. I am disproving your assertion the ratio is 60:40. I have the screen shots to prove it. The ratio for Chaos is 60:40. The ratio for Ascension is 20:80. That's all there is to it.

The problem that you, for some really bizarre reason until now, still don't get is that in Locked's sense, let me quote it for your convenience:

Hey look. Exactly what I said!
2149*.6 = 1289
1289 * 1.5 = 1934

How about that?!?

The 0.6 refers to the portion of EXP that a killer gets, as opposed to the remaining 40% that a leecher gets. If you can read and understand the example, stop for 10 seconds and do so.
20% distributed via damage dealt: 100% goes to killer, 0% goes to leecher
80% distributed via level: 50% goes to killer, 50% goes to leecher of the same level
Total: Killer:60% - Leecher:40%

Another example that's hopefully easier to follow:
Total EXP from mob: 10000
Killer's EXP: (20% + 50%*80%)*10000*1.5 = 0.6*10000*1.5 = 6000*1.5 = 9000.