I am returning to architectural photography after several years layoff. In those days I shot 4x5 film and shot a lot of "successful" commercial interiors with mainly overhead fluorescent lights. Without a color meter and or step latter, it was always a problem figuering out just what kind of fluorescents were in the ceiling-cool white, daylight, warm white, etc.
A lot of changes have taken place over the years, and it is my understanding that now days the fluorescents in most commercial interiors are daylight tubes?
Right? Wrong? What?

I don't think that the variety of FL tubes has changed much over the past few years--it's still a crap shoot. However, many companies are adopting "green" policies which usually point to daylight balanced FL tubes.

Are you still shooting film? If you've made the transition to digital the problem of FL color balance is infinitely simpler.

Good luck,
Alan