I chose Feisar at first purely based on it's handling performance and design, but then I experimented with Qirex which I liked for a bit. But that's when I tried out AG Systems, and I instantly fell in love with every aspect of it. AG Systems for life! Oh and also because my real name's initials are AG. I'd like to think I'm pretty pro at it, I've stuck with it for a long LONG time now; ever since I started playing my first WipEout game in fact which was WipEout 64.