What are the mechanics of affix generation onrares, Are there six separate choices? Options

[Schuey]

Ok I read Arreat Summit on choosing affixes for magical items and they dont have as detailed of information for the affix choice on rare items. I was wondering just how the choices are made for rares.

I thought maybe three magical choices were made (i.e. three choices that could be sufix, prefix or both). This would make sense, and would make it easy to limit to only 3 prefix/3 suffix max. Arreat Summit shows that in magical choices the percentages of affix choice are:

Both Prefix and Suffix: 25%
Only a Prefix: 25%
Only a Suffix: 50%

However, if three magical choices are made then how could a rare ever end up with only 2 affixes as is stated by Arreats Summit (i.e. 2-6 affixes on rare).

Using the percentages above and assuming that the rare routine uses 3 calls to the magic affix choice routine, it would seem that 3 affix rares would be the norm.

If this is how it works, what happens when an affix (group) has already been chosen, is the duplicate affix dropped and no affix for that choice added? Does the program call for another try at the same affix (prefix/sufffix). Does the program redo that entire call to the magic affix routine? If the affix is dropped is it not possible to have a one affix rare (theoretically)?

Well, all of this is pure speculation. Any of you code readers know what the real scoop on all of this is?

Dave