Today, I completed drilling the lower fore/aft angles out to #30. Then, I drilled the left sill out to #11, removed, deburred, and prep'd for priming. I then worked to install the extra bulkhead for the left step. I made an angle per the plans from ST-40 Raw Stock to hold it in place. First, I needed to remove the flange on the lightening hole for the angle bracket to lay flat.