Pierce:
I am glad you don't have the noise out of the X1, they told me in Nyack NY that I have to live with it. I do use harmony a lot specially with piano and strings; I just purchased the PSR2000 and works great in this respect and is also very quiet when idle. As far as registrations go, the X1 has all over Yamaha, I don't use Global regs., I simply save the Single regs. on to hard disk or floppies and recall them as I need them, the procedure is quite simple, let me know if you need help there, I may be able to help you.
Have Happy Holiday
Mario