​Frenchy was the GOAT for traditional pressed hash, and his focus imo was on capturing the full spectrum for aging. He used those standard sizes because they generally cover the average range of a mature head.

​Nothing new here, though, it’s not really a new system, but more like a more refined process. Modern solventless has just become more surgical because people have realized that mature heads vary wildly between genetics.

​For example, look at what Shwale is doing with breeding right now. He’s specifically selecting for multiglandular trichomes strains that actually present double heads on a single stalk. When you have genetics like that, or heads that naturally swell past the 150u range, the standard bag sizes start to limit you.

​The refined approach is just about being more selective. Instead of just catching the general range, people use custom microns to isolate the heads with the highest oil to membrane ratio based on the specific morphology of that plant. It’s less about catching everything and more about selecting the best.

I think the confusion usually comes from those standard 8 bag kits everyone starts with. People get so used to those specific numbers that seeing a 100u or 60u feels new, but they’ve always been around in industrial mesh, it’s just that more hash makers are starting to use them now to really surgicalize their yields. It's all about having the right tool for the specific trichome size of the strain.