After a review of CSX and SSC at ProSolos, the PSI Committee met and determined that an adjustment in the CSX and SSC ProSolo Index was necessary. Effective 03/28/2025, and applied to the Las Vegas ProSolo2 , the new CSX PSI will be .809 and the new SSC PSI will be .803. The 2025 ProSolo Class and PSI Updates Summary will be updated and posted on the Solo Rules page.