hello,
I had the same idea about optimized auto leveling bed,
I didn't read all the topic,
just to say I wrote a cura post processing CURA plugin which works well on CURA 2.1.3

https://ultimaker.com/en/community/3...=#reply-173092

if someone want to help me to finalize it and make it working on CURA 2.4, you are welcome