Bulette Charge Style with no armor?

[hotnasty]

I don't see any requirements to be equipped heavy armor within the description of the Bulette Charge Style feat. It only states you must be proficient with heavy armor to gain the feat. Does this mean that you can wear any or no armor and use the style as long as you are proficient with heavy armor? Would having armor training make it possible to use this style with no armor?

I could see this style working but then not granting the bonus to overrun checks since I'd have no armor.

Bulette Charge Style

Spoiler:

Source Armor Master's Handbook pg. 10
You use the weight of your armor to enhance the momentum of your charge.

Prerequisites: Str 13, Improved Overrun, Power Attack, proficiency with heavy armor.

Benefit: While using this style, you gain a +4 bonus on combat maneuver checks to overrun an opponent. Any magic ability or material that reduces your armor check penalty also reduces the bonus you gain for this style.

Special: A character with the armor training class feature can use Bulette Charge Style while wearing any type of armor with which she is proficient. Medium armor grants a +3 bonus, and light armor grants a +2 bonus.

[Zhyth]

Unfortunately, you do need to be wearing heavy armour to benefit from the bulette charge style feats. It's a requirement hidden in the description of armour style feats in the Armour Master's Handbook:

Armour Master's Handbook, pg. 10 wrote:

Armor style feats can be used only while wearing armor whose type matches the feat’s armor proficiency prerequisite, disregarding any changes resulting from the armor’s material.

[hotnasty]

Now I need a way to get 70+ speed.

Thank you!