Our explanation of why the 11 hole outside were drilled first. First rig to show up uses ntw pipe which has an OD of 68mm and ID of 56 mm. If I were to use this drill to open up the deep holes and use second rig to drill deeper I would have to ream the hole to TD as the second rig uses HRQ pipe which uses pipe OD 88.9 mm and ID of 77.80mm. It only stands to reason to drill outside where you do not have to waste time and money on same hole. We are just share holders so the above is just speculation but we do have many years of rig and coring experience.