I am very interested in this test.

I use cruise control every day on my (17.2 mile one-way) commute, 99% freeway.

I also have a fairly flat commute with a few ups and downs for freeway interchanges and such.

I got 64.7 MPG this morning.
It is hard to imagine it could get much better by taking it out of cruise control.
My gut tells me that whatever gravity takes away going uphill it gives back going downhill.
Plus it is a lot more hassle and mental energy to do all that stuff.
I'm happy with my lifetime average of 60.0 MPG on cruise control.

I'm not saying all the lean burn or pulse and glide techniques don't work; I'm just saying I'm getting good enough MPG on cruise control.
Just another opinion.
YMMV.

Also my MPG varies 3 MPG or so for no apparent reason from day to day.
Could be temp, humidity, or wind or the phase of the moon.