I recently ordered a slotted blue tube from Always Ready Rocketry, but the slot size I needed was .093" wide, which was not listed as an available size. I was reusing some fins from a wrecked rocket, so I was stuck with that size and couldn't change it. When I described the slots I needed, I asked for .093" anyway but said if it wasn't possible, just make them .0625" and I would file them bigger. A few days later I received a call from them, asking if I was okay waiting an extra week for my tube, because they were going to order a .093" bit to get me what I wanted and make the size available for everyone else as well. I happily told him that I was fine waiting an extra week, and I got my blue tube with .093" slots. I thought that was some great and helpful customer service, and I'll definitely be going back for more blue tube for my future projects.