that's what those shots I posted were of.
I think that mostly you just need to push your exposure a little bit. I added 50% to my exposure time with those shots, but I'm not sure how old that film was. If it's only a year or so and it's been in a cool environment, then I probably would stick with the recommended exposure. If it's a couple years old and hasn't been kept well, maybe overexpose a stop or so.