I have been working on my backhand and forehand rollers for the last couple of months. I have been using an Innova ArchAngel for most of my shots. Other than the DX plastic is just getting beat to crap, it is working pretty well. I use a Star Vulcan if I have a lot of room to work with and a large distance to cover. Are there any plastics or disc molds that work better than other, especially on a forehand roller?