I havent quite got my F dialed in perfectly yet, but im liking it more and more every day. The K has served me well for almost 10 years, i got it in pieces for free from a buddy who didnt want to put it back together after stripping it to get parts for his dohc 750. After realizing it wouldnt work he gave it to me. Ive put maybe $400 into it in upkeep, rode it back and forth from New Orleans to Minneapolis, and its still running strong. Rock solid 69K mile motor. I also just picked up another 78F that im putting cbr front and rear ends on. I really never meant to stick to 78s, they just keep showing up really cheap and I end up loving them...Did you ever end up finding that seat?