Attempting to assemble (final assembly) the F904 Center section on the -9. For the life of me I cannot get the bolts for the F904j center section spacer to get through the prepunched holes in F904A and F904E (forward and after center section / bulkhead assembly). My tech counselors said to drill the prepunched holes out but there is a big green sticker that says "Do Not drill". I reached out to Vans but no answer. I have since locked out the tech advisors as they have costed me too much money in replacement parts and starting to question whether they really built or not. Any guidance is appreciated! Would love to post photos but have no clue how. Dwg 16 for reference.