Does an eidolon rake the during the first grapple check?

[digitalpacman]

The description for the summoner rake is different than the universal monster rules. The rake ability does not say I must begin my turn grappling in order to use the rake. Which I would assume it means I always get the rake, even on the first grapple check?

The eidolon receives these additional attacks each time it succeeds on a grapple check against the target.

The key word I would think is "grapple check". Is it not a grapple check the first time you attempt to grapple?

[digitalpacman]

Nevermind. It is obviously not the first time, only subsequent because those are checks.

If you do not release the grapple, you must continue to make a check each round, as a standard action