Completed the drilling and clecoing for the inserts on the Skybolt flanges. I tried to align the lower cowling to the upper but without too much success. It appears I'll have to trim the upper edge of the lower cowl so that it's about a 1/4" from the "likely" true edge line since it appears the current flange distance is too great to get a reasonable fit and for scribing the top and aft edge lines for the "near" final trimming. Hopefully not a big deal.