Please help ID these spears

[asomotif]

I'm pretty sure, the larger one is not Moro - the flow of lines doesn't seem to fit...

My feeling on the large lance head is Sumatra.
The hexagonal base makes me think of Atjeh. same as the outer line of the blade. The tang is a problem. Normally Atjeh or Sumatra spears have a round tappering tang with a twist near the end. and not this square type without the twist.

Maybe some mix bewteen Nias and Sumatra/ Atjeh influences ?

I have another strange spearhead for discussion.
Will open another thread in order not to confuse this one even more

Best regards,
Willem