>>>>Does anyone use binary indexes?
>>>>As ?
>>>
>>>Not here... unless the index is very skewed leaving only a few records with the values you're searching for, it is not of much benefit
>>
>>I do not know how to use them.
>>SET ORDER and SEEK are not usable
>
>According to the helpfile those commands are not supported for binary indexes.
>Its only useful for rushmore for rushmore optizmizable commands like LOCATE FOR, BROWSE FOR, CALCULATE FOR, SQL SELECT, Etc
>
>And for that, in general, it is quite useles anyways, so I do not bother with it.

I think a better way to express it would be to say, benefit of creating an index on binary choices has to be questioned.
If there is a clear use case to filter on such distribution, "binary" makes such an index "profitable"