I believe the setup has much more to do with coal consumption than tuning the stove. Setup includes stove location, house size, home insulation, chimney height,coal trol location, coal trol temp setpoints and other factors. If by tuning the stove you mean using a draft gage to set the correct draft then I doubt that this is as critical as the aforementioned setup factors. I choose not to attempt to use a draft gauge to set up the proper draft. I just properly installed a Fields baro and set it to Larrys recommended approximate setting. Made sure the stove pumps out good heat and that exhaust stovepipes were not getting to hot to the touch under various outside weather/wind conditions.
A lot of folks on the forum make a big deal out of setting up the perfect draft for best stove efficiency and I think that could be a very elusive target. To many variables are involved. Do you set the perfect draft for a calm day or a 10mph wind day or a 15 mph wind day or for some other weather conditions? If you monitor the draft what do you do when it's not reading the perfect setting?
Remeber the old saying , "if it aint broke don'fix it".
P.S. I heat a 2000 sq ft tri level and am burning 40days per ton thru Nov , Dec ,Jan months. Looks like I will burn3 & 1/2 tons or so per year. Hearth model on 2nd level , coal trol set at 72 degrees and bedrooms & living space plenty warm.