Here's a question that just came up while RNGing for eggs:
After setting your egg PID, unless the date changed between the time that you caught your Pokémon (to get the seed) and the time that you saved your game in front of the daycare man with the egg ready, the first page in the Journal is going to have at least one catch entry. If you immediately jump into IV abuse next, you must first set your DS date to at least two days after the current date to cause the automatic appearance of the Journal, which will in this case have a catch entry that will advance the frame by 2. Then, you pick up your egg ASAP, etc., and find what frame you collected the egg on. Essentially, this frame is going to 2 more than it ordinarily would, thanks to the initial page appearance of the Journal, right?
If so, in order to have the best chance at accessing low-frame spreads, after saving in front of the daycare man with the egg, I should change my DS date to at least one day after my catch (the catch used during the PID process), save, and then set my date 2 days ahead and begin calibrating my frame, correct?