Master Summoner feat advice

[Some Other Guy]

Hello! I'm playing a master summoner in RotRL. We are currently level 4. I can't decide on a good feat progression and would like some advice. My eidolon is used as a cliche skill/wand monkey.

Feats currently have:
Skill Focus (Kno Planes)
Augment Summoning
Improved Initiative
Summon Good Monster

Planned progression:
5 Superior Summoning
7 Leadership
9 ??

I don't feel that Extra Summons is worth it with 10+ uses per day to begin with. Extra Evolution can be scattered in randomly. I prefer metamagic rods to feats, unless there are some that are better as feats than rods. What about Eldritch Heritage? I like the feat tax just to get 1d6 of damage on my summoned attacks. What other suggestions are there? I've read the guides, but they aren't particularly helpful or up to date.

[Tin Foil Yamakah]

I ran a halfling MS through RotRl,albeit I just 86'd the eidolon loads of fun!

Here was my build.
1.Extra Summons
2.Augment Summons(Bonus)
3. Superior Summons
5. Improved Initiative
7. Skill Focus(Knowledge Planes)
9. Eldritch Heritage:Arcane Bloodline, I like the greensting scorpion familiar
11.Summon Good Monster
13.Eldritch Heritage: Arcane Bloodline(New Arcana)
15. Expanded Arcana
17. Eldritch Heritage: Arcane Bloodline(School Power-Conjuration)
19. Quicken Spell