DIN is usually a safe bet.
FYI, the starting point on which the Improved PAS configuration table was constructed is DIN cardioids, as I figured its probably the most common standard configuration used by tapers. Its the black outlined box in the table below (copied from the Improved PAS thread)-
![](https://taperssection.com/index.php?PHPSESSID=1f39ce4c39b734d73f3924f940a7da94&action=dlattach;topic=167549.0;attach=133780;image)