The spar is really coming together. What a shame we are going to have to break this beautiful spar! We have been reaming out holes and deburring, prepping for riveting. Total assembly time to date, including cutting out spar caps and manually cutting/drilling the outer spar web, is about 8 hours. We are pleased with this, considering it is the first wing and some scratching of heads is to be expected. A few minor design changes have been made to shave off some unnecessary aluminum. Every ounce counts, right?!