Think of a plectrum, a guitar pick, and this shape is probably what comes to mind.
It probably is the shape we played when we first took a pick to our guitar. We all know its size, its handling and its curves.
We all need a couple of 351s in our arsenal, also among our boutique picks.
The Meantone slots keep the surface of the pick almost smooth, but offer just the necessary resistance to the skin to offer grip and stability. The Meantone slotted 351 works in every possible material and is a great plectrum to get into boutique picks for the first time, and offers instant tone variation in various materials, in a familiar package.