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I'm not a barista. I would like to try and learn the skills but anyway. This distributor is just okay. Heck I would give it 2.5 if I could. There is weight to it, that's a plus and adjusting the distribution height is with ease. Now, my gripes. Manufacturing definitely needs more quality control. The bottom of my distributor is smooth; however, there are some superficial looking scratches/imperfections. Imagine someone using the wrong cloth to polish something, get a scratch. Luckily this doesn't affect performance. Last issue I have with this item, if you look at the picture the middle is actually a good size circumference. If you think about it logically, this would mean that this distributor would in turn semi tamp for you? A smaller circumference or a more acute v shape or something would aid in pushing and distributing more than just pushing then just some of the excess gets evened out with a spin of your hand. I have adjusted this in my workflow by raising the distributors level a little more to ensure not much downforce is being places into the grounds when in use.