You CAN get them to look that good. I do it all the time at work. My multi-million dollar company is too cheap to buy me a few hundred dollar bottle setup. Ha ha.
Like Black B2 said, make moon shape passes, take more time, rest your wrist on something to help keep your passes consistent, and make sure your gun tip isn't too far away from the work piece (3/8" ish) is what I try to maintain. If it's too far away, it'll splat and pop. Make sure your feed rate isn't set too high either. That will cause popping as well.
-Denny