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When you create a new Incremental, Reflect always appends it to the most recent eligible backup. So if you create a new Full, then subsequent Incrementals will automatically be created as children of that Full, and in fact you wouldn't be able to have Reflect do anything else. However, that won't solve the issue you're trying to solve, because you can still have consolidation occur within the previous set. That's because if you set an Incremental retention of 30 backups, that is not 30 Incremental backups per Full. It is 30 total Incrementals across all matching backups. So let's say you start with an empty folder. You create a Full and then 29 Incrementals, and then another Full. The next Incremental will become the first Incremental of the new Full. At that point you have 30 Incremental backups total. And therefore when you create your NEXT Incremental, it too will be a child of the latest Full, but the consolidation will occur between the previous Full and its oldest Incremental (since you're using Synthetic Fulls). That way you'll be back down to 30 total Incrementals, which at that point will be 28 Incrementals on the old Full and 2 Incrementals on the new one. This process will continue going forward, with new Incrementals being added to the latest Full but the consolidation occurring between the previous Full and its oldest Incremental, until the previous Full no longer has any Incrementals at all.
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