Today I decided to take the day off from welding to put some time in on the BH5. I had a rubber cow mat that was on my shop floor when I moved in so I cut it into 12" squares and figured that I would try to use it for forming the wing ribs. A good friend of mine has a very well equipped shop so has a hydraulic press that I could use, unfortunately the hydraulic ram began leaking part way through and I was only able to form half of the nose ribs. I experimented a bit since I had six squares of mat, I found that using 2 squares (1.5") gave the best results, I was forming both holes in the nose rib at the same time. My eldest son was very helpful and ran the hydraulic press for all 15 that I did. lubrication was provided by the leaking hydraulic ram and WD-40 applied to each of the rib blanks prior to forming. I was able to get a 3/8" flange by using a form block flange length of .525" as recommended by SpruceForest on the Bearhawk forum.