Dimensioning hole patterns

[drgnman]

When dimensioning a hole pattern i.e. 6 holes, 3 horizontally and 2 vertically in line with each other respectivly, is it appropriate to have 3x or 2x on the location dimensions for the holes when not using center lines?

 

[MadMango]

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1 set of X-Y dims to locate a corner hole, then a 3X dim for the vertical distance, and a 4X dim for the horizontal spacing. Why aren't you using centerlines?

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[drgnman]

Your example helps me specify what I'm trying to ask.
On dim between the top 3 and bottom 3 holes would have 3x and the dim locating the 3 sets of verticle holes would have 2x on each. Sometimes too many centerlines can be confussing.