Thank you for the reply. Yes, you are correct, we are talking about precision...

I have not applied a shrinkage, not sure if there are rules of thumb for this... I suppose I could calculate some based on the results that I am getting but the error is not the same in all directions. For example the part is nominally a channel shape, with the following section: 1.800" wide, .750" high with a wall thickness of 0.090". The 1.800" dimension measures very close to the model (1.801") but the wall thickness is 0.097" when it should be 0.090"

When the part is printed, it is standing on end so the "Z" dimension is lengthwise along the channel and the cross section is in the X-Y plane.

Also, I have experimented with the Makerbot settings between high and standard resolution. The precision seems about the same but the quality actually seems poorer for the high resolution print.