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Octane vs Timing

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Here's something I've wanted to see for awhile and hopefully everybody will help out. Instead of just constantly upping timing and logging I always wanted a safe starting point. I went to http://www.intercepteft.com/calc.html and calculated the ethanol mixes for 93+E85 blends asuming 93 and 105 octane. I pulled one mid and high RPM entry for 180 load from the Stage 2+ 91 and 93 OTS maps along with E30. My main goal here would be to give somebody a nice starting point which would hopefully reduce the number of 130MPH runs on the highway people are doing with a dam AP in one hand as well as a curiosity of how much the octane additions play on timing.
Fuel 91 93 E10 E20 E30 E40 E50 E60 E70 E80 E85
Octane 91 93 93 94.6 96.2 97.8 99.4 101 102.6 104.2 105
Max Timing 3.5k RPM 180 Load 2 3.5 3.5 12
Max Timing 6k RPM 180 Load 5 6 6 13.5

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