After a while after giving up on trying to get my delta printer working I decided to go back and give it another fresh try.
So the problem I am experiencing is, that when I run Auto-Calibration, the nozzle touches only first 4 perimeter points and then fails to go all the way down to the bed and a message saying "z probe was not triggered during probing move" pops up on the screen.
Weird thing is that as the probing proceeds clockwise, it starts at 12, 2 o'clock 3 and 4 are fine but they rise as they go, you'd think that 11 o'clock would come back down as it comes close to 12, but it keeps rising.
I tried adjusting the homed height and when I increase it, the nozzle touches first 3 point no problem, but next few points it crushes into the bed and I turn the printer off to avoid any damage. When I increase the height, it touches first few points and then floats in the air.
As far as the endstop offsets go, I am right on money with a nozzle dead center between the 3 towers at a homed height, and it doesn't need any adjustments.
When I move the printhead close to the bed, in the center I am about the thickness of paper away from the bed, when move it away from the center, the nozzle hovers about 0.5mm higher (dishing effect).
following is a clip showing what is happening: