I had assumed that the Stage 1 maps put me in Street Touring class. Section 14.10.F for Street Touring class states: "Boost changes indirectly resulting from allowed modifcations are permissible but directly altering or modifying the boost or turbo controls, either mechanically or electronically, is strictly prohibited." From the map notes page on the Cobb site, it appears that the maps do directly alter the boost controls. Unfortunately, it looks like this means an automatic bump to Streep Prepared class. And it looks like DSP is the appropriate class for the FiST.