Bear in mind that the lab you use, unless they specialize in Ilfochrome or you pay for custom printing, isn't likely to be using contrast masking either. It's wonderful when it's done right, but it's not easy.

I was just getting interested in trying R-printing as R-3000 and its various analogues (Tetenal and others make similar kits, which are available in Europe) became unavailable in the U.S. I occasionally send transparencies to dr5 (www.dr5.com), which is mostly known for B&W reversal processing, but also makes excellent R-prints using the R-3 process on Fuji Type 35.

I like R-prints for smaller enlargements and contact prints from large format negatives. For bigger enlargements, I'll spring for a drum scan and LightJet print from West Coast Imaging.