I don't wanna get too far off @KD8UYQ's exquisite build, but my sense is that a lot of legitimate experts there are overreacting a bit, and it's brought a real downer on that group. Farhan's argument about the issue was that the harmonics would still be way less than a conforming 100W rig, which is true, and some operators are thinking "spirit of the law" v "letter of the law". And I don't think anybody's gonna be knocking on anybody's door about the harmonics. Mine is dead in the water because of shoddy cheap components (a relay that was sticking) and my lack of desoldering skills replacing it but I'll be working on it more this weekend. The exploding TDA- audio chips was another example of shoddy components. That said, I have been thrilled to get on HF with it while it lasted and I have learned A LOT about radio from it. I have been a big recommender of it here, but now I'm a lot more hesitant, and am looking forward to QRP Labs' QSX.