The article isn’t fully accurate. For example old growth is not more knot free. That depended on a lot of factors. Maybe the wood used for windows was more knot

The article isn’t fully accurate. For example old growth is not more knot free. That depended on a lot of factors. Maybe the wood used for windows was more knot free but that is a different matter entirely. Here is a counterpoint article: https://www.finewoodworking.com/forum/old-growth-vs-second-growth-or-later https://www.finewoodworking.com/forum/old-growth-vs-second-g...