Rule Lawyering

yeah the dodgyness of the AoO trip thing is why I brought it up


Also:
Hurling Charge
[Fighter Bonus Feat, General]
You are trained in using thrown weapons as part of a charge attack

Prerequisite: Quick Draw, base attack bonus +6

Benefit: If you charge an opponent, you may make a ranged attack with a thrown weapon as well as a melee attack with another weapon that you draw during the charge. You may use this feat only if you have a throwing weapon in hand at the start of your turn. Both attacks must be made at the same opponent, and both receive the bonus on attack rolls for making a charge. (If you kill the enemy you're charging with the thrown weapon, you complete the charge but don't get a melee attack.) You must also follow all the requirements of making a charge. If you have the ability to make multiple attacks on a charge, you may make only one attack in addition to the thrown weapon attack. You still take the normal -2 penalty to Armor Class for making a charge attack.

Special: A fighter may select Hurling Charge as one of his fighter bonus feats.


plaha charge is melee only

You threaten all squares into which you can make a melee attack, even when it is not your action. http://www.d20srd.org/srd/combat/attacksOfOpportunity.htm Armor spikes can make a melee attack into adjacent squares, even when you used a different weapon to make your attacks that round.

Let's assume you're wearing armor spikes and holding a glaive, and you have a +11 BAB. There is a kobold adjacent to you, and an ogre standing at reach with you. When you full attack, you get three attacks at +11/+6/+1, so you attack the ogre with the glaive at +11, attack the kobold with the armor spikes at +6, and attack the ogre again with the glaive at +1. This does not take TWF penalties, because that only applies when you're using a second weapon to gain additional attacks beyond your normal iteratives. Just the same, this character makes AoOs at +11, and can use either his glaive or his armor spikes to do so.

You typically cannot use a spiked gauntlet to make an attack if you're wielding a two-handed weapon. It may be possible to take one hand off the weapon, use that hand to make a spiked gauntlet attack, and put the hand back on the reach weapon at the end of your turn, but in this case you cannot use the reach weapon on that turn because you're using one hand to do something else, and some DMs may rule that you cannot switch back and forth in the same round. It is a move action to move an object from one hand to the other, but removing one hand from a two-handed weapon to do something and then placing it back on the weapon has no official ruling as to what type of action it should be, but most will consider it a free action.

Armour spikes are not only placed on your hands/guantlets.
So in short there might be some on for example you feet/boots or knee's.
So while holding you glaive you could give a vicious kick to the kobold while maintaining your grip on the glaive.