Last month I purchased the Audiophile Optimizer, and have been very pleased with the results. Today I received the 1.24b1 copy from Phil. The functional improvements for switching between Shell modes, and from GUI/Minimal/Core go a long way for speed of installation and tweaking. The upgrade from 1.23 took less than 2 minutes, and the menu flow is very intuitive. Thanks Phil for a job very well done. Support from Phil is second to none.