The thought behind the removal of VTS sheets was to freeze the performance level of the cars to approximately 2009 specs. This includes STO and STU. STO posed a larger issue with this, however there are some really fast Touring cars out there. Just an FYI, we are still getting letters that say please slow down the WC cars in STU. Then we get letters that say please keep the WC cars as is with VTS sheets. We are trying to get this balanced and it won't be easy.