Identical

[dan]

Anecdotally, if both players have the same starting hands and opening, the first shuffle is identically. Including the player number in the random number seeding could create divergent and deterministic shuffles.

[Stef]

Anecdotally, if both players have the same starting hands and opening, the first shuffle is identically. Including the player number in the random number seeding could create divergent and deterministic shuffles.

This... sounds very unlikely. How many times have you tested it before coming to this conclusion?

We're only using one random seed per game, so I don't see how it could be true.