I've experienced the white specks with a number of papers and in every case a small drop of TWEEN does the trick. I use both rod and brush with excellent results. I also allow the sensitizer to soak in until the surface has no sheen and then dry it with a small hair drier on the lowest (very low) temp. I rarely need more than a few drops of #2 if a skight contrast boost is needed but always use 1 drop minimum to prevent fog.
Give the TWEEN a try.