About five years ago I purchased a Kenwood TS-530s with an AT-200 tuner. When I bought the unit I had a tech check it out and it was putting out an hones 100 watts. Lately I have noticed that when I do a dummy load tune up my old AT-200 indicates about 80 watts on 20 meters. I'm thinking the finals are getting tired or perhaps the old AT-200 is just not at all accurate. I really don't want to invest in a bird, I don't do that much tech work. I am wondering if the $100 MFJ watt/swr meters are that dependable? Would it be worth the investment, or should I just try to find someone in the area with a Bird?