Tracking dimension groups in AX2012

Dear All:

Hope you are doing very well

What is the recommended setup for the tracking dimension groups in AX2012 , to enable or disable the primary stocking option or not ?? and what is the effect on the recalculation and closing performance

Thanks a lot

Not primary is my recommendation as it would reserve blank if not specified which in a marking environment causes issues, depends if you financially track as to whether it impacts on closing.