I don't know about starving your plant being a good idea... Not only will the yield greatly suffer, but it might put the plant into survival mode, aka it could hermie. At least give her some unsulfured molasses.

Smooth smoke can be accomplished by not feeding for the last 2 weeks. Molasses is still OK and recommended during the final flush. This makes the plant use up it's stored nitrogen (as well as the remaining nutes in the soil), which is usually the culprit in harsh smoke. I can see by the pics that's it's pretty nitrogen starved already. Not much you can do about it anymore.