I don't know how "bad" this suggestion would be to a purist, but I took a toothpick and touched brown shoe polish to a few open pored spots that had some white in it. I only had 3 or 4, but it did the trick. After that, I rubbed it with a cloth and then sanded lightly with 1000 sandpaper and started my finishing again. Worked great for me
Last week I bought four different colored dyes that match wood to use in the future. Some woods have a wide range of very good vs. not so good grain. Purple heart pores show up as too much dirty gray contrast for the beautiful purple of the grain on some blanks, so I bought some purple leather cream paste and am going to try that to get the holes more consistent in color to the grain. I haven't had time to try it yet, but will soon.
A recent post of Pink Ivory got me interested in trying this. As one person said, there is a wide difference in PI quality. I have turned 2 PI and did not like the looks. They looked dirty because the pores were gray. I hope to see if I can fill these gray pores with some pink color.
I will be busy in the Habitat for Humanity booth for a couple of weeks at the World EXPO that opens in a couple of days (Nagoya, Japan) and might not get a chance to try this for that length of time. If someone else wants to try it first, go ahead and let us know.