Hi Fred,
The RH Analyser Pro works like a charm with any paper and enlarger. You just have to calibrate for each paper with that particular enlarger.
My very detailed instructions for calibration are posted on the RH Designs website. The process is exacting and you do have to be careful not to make mistakes. With practice full calibration, speed and contrast, of all 7 grades including 00 with a new paper will take about 90 minutes. Allow double this first time.
Happy printing.