Yes I don't make flutes tuned to other scales. It has become standard practice to use the mode one/mode four six hole tuning. It is generally accepted that this is the de facto tuning for the Native American flute. There are some flute makers who tune flutes to all kinds of scales, both major and minor. My flutes are always in the mode one and four pentatonic minor scale.
Are Ancient Territories Native American syle flutes always tuned to a minor scale?