I altered our company's hole callout text file, basically I added the fastner size <hw-fstsze> and sometimes type <hw-fsttyp> to the prefix of the callout. That would give me a fractional number for for the screw size or in the case of a plain hole it would give me my drill size. In the case of the counterbore or sunk holes this still works fine. On my plain holes callout, instead of giving me the drill size i used to create the hole, it's now giving me the decimal equivalent.
One other thing I just noticed, when I have <hw-fstsze> in my calloutformat.txt I get an option for fastner size or diameter. When I take this out I only get diameter under this option. When I choose fastner size 11/32 it does not change in my hole note.