I can’t speak for the Reyburn, but the Hoovers aer sure to be gems! I had a treasured CPVC F from Mack which sadly has been written off as abducted by the Crystal People somewhere in Kansas…(ie: lost in the mail??) and the Skipole lows are amazing as well. I think my favorite skipole key is still C but the G’s are not slouches either. Whoever is the lucky whistler that ends up with these is sure to be happy.