The only thing you have to consider is, NOT all pen tablet support tilt (include mine) you can check wacom site for example ,I think only cintiq and pro has a tilt feature
maybe that's useless for you but useful for other ppl
here an example initial brush setting I have in photoshop

- brush.jpg (407.59KiB)Viewed 4759 times
paintstorm have an angle modifier with the brush, but.. in paintstorm, when choosing brush strokes /direction for angle modifier, it'll always turn the angle for every stroke direction I makes. pretty hard to explain since my English isn't good enough, but I hope you're understand what I'm talking about.
the point is pretty similar with tilting (maybe, I never tried it before, but tilting in real pencil is same right?)