Synthesist: Special Abilities vs Feats

[standaloneghost]

So according to my GM, as a synthesist archetype summoner, I do not gain evasion / multiattack / imp evasion through leveling up. I would have to spend feats to pick them up.

The only rules I can find regarding the issue are:

1) Synthesist: The synthesist also gains access to the eidolon’s special abilities and the eidolon’s evolutions.

2) Eidolon: This includes a number of abilities gained by all eidolons as they increase in power. Each of these bonuses is described below. (Evasion, Multiattack, and Imp. Evasion are listed under this heading)

but on the other side,

3) Extraordinary Abilities: Extraordinary abilities are non-magical. They are, however, not something that just anyone can do or even learn to do without extensive training. Effects or areas that suppress or negate magic have no effect on extraordinary abilities.

4) Synthesist: "The eidolon mimics all of the synthesist’s movements," -- Ergo, while the synthesist uses the Eidolon's ability scores, increasing his physical abilities, the synthesist is ultimately the one doing the moving.

What do you all think should be the ruling?

[David knott 242]

I think he is wrong. Except for Multiattack, there really are no feats that grant you Evasion or Improved Evasion, so Multiattack is the only one of those abilities you could gain with a feat. But it seems that Evasion, Multiattack, and Improved Evasion are all eidolon special abilities, so the summoner should have those abilities while the eidolon suit is summoned (but not when it is absent).