I am riding the first frame I built at Yamaguchi's right now. Its a cross bike and I build it up in the fall and ride it till the spring, I am not a cross racer but I just love the versatility of a cross bike. I am mainly a roadie but I take it on gravel, dirt, everywhere. If you go to Yamaguchi's class you will bring back a nice frame, a frame that you will have for a long time, and the cool thing is you build the whole thing, clearly he is overseeing everything you do so you get it right and he will help you when you get to the most important stuff but you will build it all. A lot of making fillets look good is the clean-up work after you have brazed it, the filing, sanding, etc., like Unterhausen said, you just lay down a little extra and smooth it out later. I would send photos of my first frame but I always have trouble getting uploading them here, they may be too large, not sure. If you like you can check out some of my first frames on my blog, MEECH Custom Bikes.http://meechcustombikes.blogspot.com/ Thanks for looking. Good luck with the build.