Digital BW, The Print

I use the Eye-one photo to produce custom colour profiles, and have 
recently started using it to help with QTR. I would like to be able to 
measure print density so I can compare figures with those that others 
produce, but I can't figure out how to do this with the eye-one 
Measure or Share tools. I can only seem to get Lab readings

Can anyone help me out? or is it not possible

Cheers

Richard