As a huge fan of the Radical Yeti Unleashed, I couldn't wait to get my hands on the Primo Solid. For me, the Primo Solid has a similar motion to the Yeti Unleashed with a little more length and a lot more continuation. When the original Primo isn't quite enough, the Primo Solid gives me a good bit more traction handling heavier volumes of oil with ease. So far, the cover has proven to be very versatile, responding very well to surface adjustments. I went with one of my favorite layouts (Pin under MF which puts it about 5.5" from my axis). This layout keeps the Primo Solid in play on a wider range of conditions for me and also allows me to blend the wet / dry house patterns in the area.