I'm getting ready to build a fence, consisting of CMU pillars spaced every 10 feet, with wooden pickets or latillas between them. For the block pillar foundations, I plan to dig holes in the ground, add gravel, and pour 4" pads of concrete for the CMU blocks to lay on top of. The grade is ever so slightly not perfectly flat.
How should I level the concrete foundations for the block pillars relative to one another? Both technically, and theoretically? Should I have the block pillar foundations precisely match the grade? Or keep them as level in an absolute sense as possible to keep the fence straight? And if I should level them... how to you level discontiguous pads of concrete 10 feet away from one another?