Smaller focus point for RX100
Not sure i this tip was shared yet, but an easy way to have smaller focus point than the standard one is to select the "flexible spot" option from the menu (menu 2?) and leave it centered.
Looks to be 2/3 the size of the regular center spot.
Now, if they would only follow Fuji's lead and release some useful firmware updates (e.g. auto ISO setting, better OOC Jpeg colors, custom menus, and zoom focal length indication)!