Horseshoes of Crushing Blows & AoMF?

[threemilechild]

My animal companion already has an Amulet of Mighty Fists +3. I'd like to give his hooves a different enchantment.

If I give him Horseshoes of Crushing Blows +1 Cruel, would they function, and if so, would his hoof attacks be +1 Cruel or +3 Cruel?

Or would the enchantment on the horseshoes need to equal or exceed that of the amulet before they became active? If so, that wouldn't deactivate the amulet for the other natural attacks, would it?

[Green Smashomancer]

The net effect, I believe would be +3 Cruel, enhancement bonuses don't stack.

[Kazumetsa Raijin]

They wouldn't stack. You either take the bonus from Cruel or Crushing Blows. Most GMs rule that the higher bonus takes precedence... but it sounds like something you should ask your GM anyways.