I'll agree with this, too, for Ilford.
Using RC for quick work prints does give me an idea of the contrast I'll need, at least to start, and a ballpark idea of where to start for exposure. I still do test strips when I make FB prints, though - just saves money and time in the end.
That's interesting.... my experience is quite opposite. I initially planned to do that but the results were so different, I had to abandon it.... I'm glad it works for you though!