This EXACTLY. Most oboists don't want to get into the technical aspects of reed making. Once I learned how the double radius gouge can improve American style reed making with proper adjustments, I started to have better and better results with my reeds. The measurements Pierre talks about are so key to American reed making. You need a strong spine at .60 or so, then let the gouge quickly taper for better vibration. I think the Ferrillo guide I use for my gouger is .54 or .53 in the same area Pierre describes. Then the sides can be thicker at .47 or so and adjusted slightly to preference. Taking measurements of your gouged cane (and making sure they're proper) before shaping will save you a TREMENDOUS amount of time and effort. I just couldn't make good American reeds until I understood this. I would use a single radius gouge and end up with something I had to scrape like crazy and the sides would be too thin. It was REALLY difficult to get a good spine as well. A proper gouge can save you so much time and headache. Also loved your video on Laubin reeds - I definitely find that the blend must have a more gradual taper. I have learned so much from your videos. Thank you!