New purchase, sikin panjang.

[Sajen]

Whether there is a connection between similar grip styles of different ethnic groups in Southeast Asia is another question.
We'd have to look at the meanings of the handles, honestly, I don't really know.
Here is another example of the shape that you call the "Y" shape, a Sumara from Sulawesi compared to Sikin Panjang handles and Pakayun handles.

Regards,
Detlef