Recently, We found importing a PTX and PTS with the default settings brought them in very close, but not at the exact coordinates. Turns out, for pts we needed to specifically change the units to US Survey Feet. While I was given instructions by the Autodesk Support Team, and was able to figure it out, I find the simple solution would be to move unit selection up front, where you select files to import. See attached images (If I could add 2 more attachments, it would be useful in explaining).