This `F' series Powershift quickshifter control unit features AST + Intellishift<sup>TM</sup>, the world's first adaptive quickshifter! and compliments the TLS-PS1-2 products.  This unit allows you to shift up gears at constant or full throttle without the use of the clutch for super smooth up-shifts at any rpm.  This unique quickshifter design only operates after the first 25% of the rev range which results in no stalling when selecting neutral.  This design adapts itself to the RPM of the engine bringing the engine back on line progressively after each interrupt.   As the RPMs rise each gear change remains as smooth as possible.  When combined to the TLS-PS1-2 `auto-upshifting' is possible where the powershift can automatically make the upshift at a user defined RPM.  The `F' series control unit requires just a single button press to program making setting up simple.