I'm wondering which one in the long run will be fun to have? Woo Audio and DNA Stratus have much flexibility, you could try many tubes, play around to find your own sound. Or and this is more philosophical question would you want to settle down for something as cavalli liquid fire where amp has perfect sound(assuming you heard it and liked the sound). Last question, do you not set yourself up when you are buying tube amp because you would be so eager to try other tubes that you will end up spending endlessly? Right now I'm having to chose between LF and Woo Audio 22 or DNA Stratus. Help me understand what will I miss if I will go with LF. Thanks.