Tried a new setup now that I have a larger area to shoot in, black background was 4ft behind the incense, and I was about 5ft in front of the incense. I had an off camera flash set up on a tripod a foot to the right of the smoke, pointing at the section that I was shooting.
Processed in Lightroom first, convert to grey scale, reducing the exposure a little, bringing the blacks, clarity and luminance noise reduction to 100%
Did some slight sharpening in Lightroom then off to PS2 to invert the black and white and add color. I've overwhelmingly pleased with the results. Fell in love with 3 out of the 118 shots taken.
If I have continued success with this set up next time I execute it (and tidy up my room a little better from the recent move) I'll be sure to document it!