Effectively yes. The discount on weight applies to the witness data. 

On Feb 18, 2018 11:42 AM, "CANNON via bitcoin-dev" <bitcoin-dev@lists.linuxfoundation.org> wrote:
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I have a question in reference to the increased blockspace enabled
by the segregated witness upgrade. Is this extra blockspace beyond
the legacy 1 MB limit limited to just witness data?


- --
Cannon
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Email: cannon@cannon-ciota.info

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