I've spent my day trying to reach rank 4 and have achieved my goal. I have made a video showing my loot results along with my thoughts about Sparrow racing. This video is important to those asking themselves whether or not the SRL is worth their time and effort... Rank 3 has provided me with very good rewards and I hope it's been great for everyone else as well! I hope you enjoy the video and let me know what your thoughts are about the SRL.