Midcourse correction on the the lower Skybolt fasteners. Seems the inboard flanges hang over the exhaust mold curve just a little too much. Moving them more outboard defeats the purpose so I decided to use the existing nut plate feature for the inboards. The outboard flanges are riveted in place and the holes for the inboard and outboard attachments are now drilled into the cowling. My friend Dean gets most of the credit for realigning my thinking.