Battlefield Control With a Reach weapon (PFS Battle Herald)

[Failedlegend The Eternal Gish]

So the title gets most of the idea across.

Quick Character Layout:
Female Human Sister-at-Arms Cavalier1/Exemplar Brawler 6/Battle Herald X (Current Cav1/Brawler2)

Stats: Str 18, Dex 13, Con 14, Int 7, Wis 7, Cha 16

Feats
1. Steadfast Personality, Gray Maiden Initiate: Endurance & Acceptance, Precise Strike (Teamwork Feat)
3. Shield Focus & Shield Brace
5. Power Attack & Pushing Assault
7. Lunge & Combat Reflexes

Future Feat Thoughts: Practiced Tacticianx?, combat reflexes, Lunge, Extra Performancex?, Lingering Performance, Weapon Focus (+1 attack roll and common pre-req), bodyguard, in harm's way, Cornugon Smash, Phanalax Formation

Martial Flexibility allows me to use things like Phanlanx Formation on an as needed basis.

Anyways the original idea was to take the step up line but due to some wording of the feat it doesn't work with reach weapons and pretty much anyone I try to block to protect my allies just laughs 5-foot steps past my "outer ring"and than proceeds to ignore me.

So Hoping to combine Power Attack, Pushing Assault and Lunge to counteract that but could use some help with feat order and any other suggestions for improving my battlefield control and/or "Bardic" side. If it matters I primarily use a Lucerne Hammer & a Darkwood Heavy Shield (thanks to shield brace) but also have a halberd and a Glaive-Guisarme and some shortspears.

Note: I realize this build and Battle Herald in particular are NOT optimal choices this was chosen to fit the fluff I was going for so please try to keep your suggestions focused on this build especially since m already Level 3 and cant rebuild due to PFS rules (and retraining is expensive and wickedly slow)

[CigarPete]

Are you investing in UMD? A wand of longarm would be useful, as well as potions of enlarge person for reach.
You will also need to invest a feat in Combat Expertise or Dirty Fighting.you will need them as prereqs for any combat maneuver feats taken with martial flexibility.

[Failedlegend The Eternal Gish]

I have a 10 in UMD atm...I'll look into longarm for my next 2pp. Learned that enlarge person is a full round action today so will probably buy a few potions.

[CigarPete]

It's a fun build. I've an aberrant bloodrager 4/brawler 1/battle oracle 3 who uses a Lucerne hammer and gets tons of AoO with 15ft reach before I start boosting it

[Tomppa]

Did you take a look into the Combat Patrol feat? It's... Not easy to pull off, but when the situation is just right, it can be a beautiful thing.

[Ferious Thune]

Phalanx Formation... It's pretty much become standard on my reach weapon builds. Allies don't provide cover. It's basically Improved Precise Shot for reach weapons.

[Failedlegend The Eternal Gish]

Combat Patrol: That seems really cool...another feat to throw on the pile to agonize over which ones to take :D

Yeah Phanlanx is a really cool one...good one to use martial flex for since its either needed or not.