I'm thinking your question has more to do with- how do you still do naps and such when they are feeding so frequently (and inconsisently?)
The best thing is that you are following Tracy's methods, so you are watching for cues already. So, instead of sticking to a schedule since you are feeding "on demand" during the growth spurt, just keep watching for sleepy cues after eating. Your lo will also need sleep during the spurt, and it's very easy to mistake sleep cues for hunger cues (especially that early in the game!) But if your lo falls asleep nursing, that's ok too! Don't worry about the schedule right now. Just don't forget that the spurt shouldn't last too long, so you don't want to end up with a snacker.
congrats on your new little one!