I've just looked at your machine, and I've never seen this unit before. How much did it cost, and where did you get it? Looks like you did some decent welds to start with. Try looking over the way these welds are done on the bikes in the stores, then make yours as much like them as possible. That is, you'll need to space your "dips" more closely together so it'll look better, but you're on the right track as is. If you have to, you can use smaller diameter filler wire/rod, which will force you to dip closer together and perhaps a bit faster. You're doing good, though. Post pics of your work on the actual bike!