You can't rotate stamps or ANYTHING by a random angle like 33.5 deg, you have to pick 90deg increments only! And with brushes NO ROTATION is available. This feature to allow rotating brushes is the BEST IDEA EVER!!!! (and I recently had thought of this myself, but just hadn't yet posted it) This DEFINITELY is a MUST for a new feature.
When I first made the enhanced brushes (adjustable height and width), I wanted them to rotate as well, but that didn't go so well at the time (over a year ago), I may have another look at it if I get the time.