One thing to consider is don't worry about going off the line. It is going to happen! What is important is if you go off the line, make a gradual return to the line. That wont show. If you make an abrupt return to the line, that will show and will have to be addressed.
If I make a miss cut, I go back and touch it up with the right side of the blade. There is a burr on the right side of the blade which helps in trimming off a mistake.
A reverse tooth blade will help with the fuzzies, but will not eliminate them completely.
Sand your blank to final grit before you cut. That way when your are done cutting, you only have to touch it up with the final grit sandpaper. I sand to 220 grit for hardwoods, and 320 grit for Baltic birch.
Using good blades is important, but they are not going to solve all your problems. You need to learn to make smooth cuts. Let the blade do the cutting. If you have to push the wood into blade, then turn up the speed. If you can't stay on the line, then slow down the speed. Most importantly, keep practicing and have fun with it. If it isn't fun, you won't have good results!