Thanks. I was guessing that would be the case.
For my problem, high performance is not an issue.
What happens is that we have volumes snapvaulted in 7 mode, and in order to save space, we have created clones so we can continue the snapvault without creating a baseline
As we are migrating these volumes to cDOT, we have to undo the clones, which would hydrate the data and remove any savings we are having.
In the future, even if the snapshot count has been increased, it seems aggregate deduplication is a better option than cloning from a long term perspective