I race in DSRA and myself and 4 others run the 20" mid on the XR2001 and never had any problem, in fact it was a 20" on the boat that took second and we have about 17 boats in our class
This prop is in perfect shape and made one pass with it after it was worked by Baggy, it's a standard hub...will take $500 or might consider trade for a 22 ET or 24 Yamaha Drag in the same shape