both ways of pinstriping a flame work (tape outlining, or using a brush). It all depends if you can handle a striping brush.
As far as loading a brush I like to have 2 cups of striping reducer and a cup of the striping paint. Then get a nice slick paper old issue magazine for a palette. Dip the brush in the reducer and then in the paint. Run it back and forth (sweeping motion) in a straight path on the magazine page. Then dip the brush in the paint again and do the same motions over the spot you were doing it before. That should load the brush well enough. After all that, pull some practice lines on the magazine page to make sure it's pulling a good line. The second cup of reducer is to have some fresh clean reducer on hand for extra brush cleaning, or putting fresh reducer on a Q-tip for screw up clean ups.
Time to paint.
A good suggestion to all new and novice pinstripers is to coat the surface you plan on striping with some top coat clear. Let it dry 12 hours or so and then sand with 600-800. DO NOT sand with anything rougher. The stripe paint will spread out in some of those scratch grooves.
Don't go with anything finer than 800, cause you want some tooth for your paint and top clear.
Buy a Xcaliber brush, spend some hours at the handle practicing and you'll have no desire to buy a beugler tool /ubbthreads/images/graemlins/sunglass.gif