Ok quick update as promised. The holes on those 2 leaves remain the same 2 days after so I'm guessing it's not some pests or something. Did spray neem oil anyway just in case and will do so every week for a couple more weeks at least as precaution.

The small yellowish dots remain the same too. Plants received a good watering today with plain tap water rested for 3 days and pH adjusted to 6.5. Soil pH tested at ~6.5 as well using distilled water. (Photos 01-02-03)

On pic 04 you can see one of the 2 plants that received FIMing about a week ago. It doesn't look well, no new tops (those seem to be just the leaves that were left there during FIMing) and the plant is stretching like crazy ever since... Pic 05 is the other one that received FIMing, obviously in a better state although I think there is some mutation on the top leaf. Also it's the one that the holes appeared on those 2 leaves... Asides that though she looks good.

So the questions are,
  1. what are those little yellow dots? Even if I don't have anything to worry about I still wish to learn from those experiences.
  2. Should I worry about the holes/mutation on the FIMed plant?
  3. Should I top or train the other FIMed one that didn't grow tops but is stretching like an ass? Or should I just tie her down. They are around 30cm each as of now and will let em grow another 10-15 (so around 1 week to 10 days, dunno if enough to recover from topping...)