Hey guys, I need to clay my car after this horrible winter. I've been using Sonus SFX for a while, but I'm thinking about switching. I'm thinking about ordering some Riccardo yellow (I'm located in Canada) but how does it compare to the sonus? It seems like the Riccardo yellow has a lot of hype, but is this hype jest because it's "illegal" in the US? Also, please feel free to make some other suggestions. Thanks in advance!