After purchasing a KAT2 kit together with my K2 kit in 2008, I never built the KAT2. After using K2 s/n 6424 for more than a year with a ZM2 tuner, am debating whether to just sell the KAT2 kit. Not sure what if anything am missing by not having an autotuner installed in the K2. Any advice? 73, Curt KB5JO