Overall correction Haltech Ethanol help

Hey guys I'd love some guidance I've recently installed a flex fuel sensor on my jzx100 with a haltech elite 2000. I'm trying to understand the relevant correction tables since I'm introducing E85, and hopefully sort my issue, this is my car to learn to tune on so i don't have a lot of experience and any help or suggestions are appreciated.

The car has been tuned on 98 only over a year ago and I've been making mechanical changes since. I've been slowly upping the ethanol content in the tank and have had no deviations in the lambda readings from when it's run on 98 all the way up to E45. I've topped up the tank to E60 now with more E85 and I noticed whilst warming up to 55 degrees C coolant temp the idle began hunting and in the log I've seen the lambda reading spike up and down from 1.05 (the target at idle) to 1.36 then drop to 1.0 or 0.9, slowly becoming closer together until it stabilizes and the ecu is no longer correcting in the stft. The picture i have is from E45 but its drastically more aggressive now with 60% Ethanol in the tank.

I've tried increasing post start correction because i figured the extra alcohol is vaporising whilst everything is cold but there wasn't any improvements, i also tried increasing the relevant nodes in the the coolant temp table with also no help it was still hunting and adding and pulling fuel.

The only correction being turned off that stops the hunting is the Overall correction with a value of 25% next to it, but then it's saying my fuel table is pretty much globally out 20-30%.

The map is set to flex fuel and it is reading from the flex sensor with the populated scalar values. I'm a bit confused on if the Overall correction is required while running on ethanol and I'd love to learn how i can rectify this hunting issue without disabling short term fuel control until 55 degrees coolant temp to stop the hunting and ensure the fueling is correct.

I also am reluctant to add 20% fuel in the fuel table because a minimum of 85% Ve at 1500 rpm on a cammed 1jz vvti in vacuum sounds wrong to me. Let me know what you think I'm open to all suggestions.