I'm just posting about the posibility if the bores weared out uneven ( oval due the lifters position or tappered ), wouldn't the electroless nickel plating fill the bore also uneven parallel to the weared out bore if applying to the bore? Or applying to the lifter, some areas of the bore will be tighter against the lifter than others?

Just thinking out loud, not saying I'm right or wrong. How critical could be this?