[....I found that the XS Big Dot was just too BIG. But, because the Tritium lamp inserts are actually the same size, the XS Standard Dot has worked well enough for me...
Same here. On a low profile sight, I like the XS Standard Dot. As some mentioned, it does limit a little on precision vs a clean square. As long as it matches sight groove/rear sight height and POA/POI match up well enough for the handgun I like the Standard Dot a lot for carry and quick shooting....BIG dot, not so much.
