If you want a row of CVs to align with a specific point, there's an easy way to do it, but it takes a little getting used to.
Let's say for example, that the CV to align with is forward in the X direction and to the side in the Z direction.
Select your row of CVs to align. Press "W" for Move Tool. Hold "V" for Point Snap. Now, to align the selected CVs to the wanted X coordinate, with V still held down, Click and drag on the red X direction move tool handle and drag it to the desired CV to align with.
Make sure you are grabbing the X direction handle, and not the center handle for all 3 directions, or all your points will converge and snap to the point directly.
To align their Z coordinate to the desired CV, do the same thing. Hold "V" for point snap, click and drag the blue Z direction's move handle up to the desired CV.
Hope that was understandable.