I was using Mothers and thought it worked well. After reading some I was looking for something with a little more durability. I got a small jar of P21S and now that's all I will put on my machines. After cleaning (a little novus) I put a few layers of P21S and they are ready to go. My friends comment on how fast my games play. It has nothing in it but pure carnuba wax and it shows. Go with P21s