The wing tabs are only set in place during this process to allow for any neccessary adjustments. Since I had a handy drill extension, I used it to drill the tabs with the wings in place. Per the instructions, I worked on the bottom tabs first. The drill extension worked great. I decided to use blind nuts on the struts (the kit is supplied with lock nuts if that is your preference)...I installed the blind nuts before doing the drilling...lesson learned - wait until after the tabs are drilled. No serious inconvienience but I had to clean out the threads of the blind nuts after the drill bit bumped into them. After drilling the tabs, I screwed in the bolts and proceeded to glue in the tabs using thick CA per the instructions. Be very careful here - it is REALLY easy to use too much and permantly glue your struts in place - I almost did it - once on the bottom wing and once on the top.