Place grid snippet in original position rather than gun

Hi.

As part of a script, I want to place a grid that is saved as a snippet in the master page at the original snippet location. Even though Snippet Import prefs are set to Position at Original Location, the script loads in into the place gun. I can't find any resource on how to place it on the master in original location. Anyone knows?

The script excerpt is:

myDocument.windows[0].activeSpread = myMaster; 

var snippetFile = new File (snippetAddress);

myDocument.place(snippetFile);