Since I feel like there’s no real consensus on if you should wait or not between titles when listening, I went ahead and asked:
Hello,
Good question, and one that genuinely does not have a strict rule attached to it. Our official listening instructions cover total exposure, rest days, microloop progression, and stack size — but they do not prescribe a specific gap between two titles on the same listening day. So in practice, both approaches you mentioned work.
On the spacing question
Back-to-back listening is fine. Spacing them out across the day is also fine. The total exposure load and the day-on/day-off rest pattern matter much more than the gap between titles. There is no scripting mechanism that requires recovery time between two different titles within the same day.
That said, spacing them does offer a small practical benefit: each title gets a few hours of standalone processing before the next one layers in. The subconscious is not stuck juggling fresh scripting from both at the same moment. This is a marginal advantage rather than a major one — many listeners run back-to-back with no issue — but if you are asking which is “better” for results, lightly spaced tends to be slightly more elegant for integration.
If you do want a number, somewhere between two and four hours between titles is a reasonable rhythm. Less than that is essentially back-to-back from the processing standpoint, and beyond that the gap is overkill. But again, this is preference rather than rule.