I just purchased a brand new Mesa Electra Dyne 2x12 combo from Mesa Hollywood. Incredible amp, in fact its my second. They sound great in stereo. I was looking it over after it came in though and noticed that one of the 6L6 tubes in my new amp is about a half inch longer than all the other tubes. They are all labeled STR-440, but it just seemed odd. I know Mesa rebrands their tubes and they can come from different sources, but i suppose i just figured they would be the same specs. FWIW im not worried about it and am happy to have the amp. Just more of a curiosity than anything... Anyone else notice this in a new Mesa amp or tube set?