As we have come to expect around here, TomB continues to provide excellent, timely advice and an important warning. You would do well to heed that advice (and the warning).
I think you should most definitely perform the power-off checks he recommends before proceeding to attempt any power-on measurements. It bears repeating, power-on measurements are always risky, especially with traces this small. The possibility of shorting something out by accident is always present and great care needs to be taken when performing them so as not to damage the part. Please do not attempt them if you feel uncomfortable in any way. I would hate to see you take out one of your DAC's by having you attempt a task you are not completely comfortable in performing.