[Patrick G]

I don't think it's a good idea to make the low octane table the same as the high octane table for a street driven car running pump gas. Smart tuners will modify the octane scaler so the ECM will not be as aggressive in dropping timing down to the low octane table. The real key though, is tuning the high octane table well enough so you don't have excessive spark knock (which drops you down to the low octane table).