I need a DRO on my shaper spindle or some other highly accurate way to set up height on cutters. Milling parts for doors with profiles that fit together that need to be flush when assembled is my main issue right now. I am looking at an I Gaging height gauge as a possibility right now ,anyone use this or something similar ? What other techniques am I missing here ? Feel free to educate me . Need repeatable accuracy, quick efficient set up and less "trial and error"involved in my process.