I use Heiko's 'PSRReg' program, and find it an indispensible tool for naming (renaming) and organizing (reorganizing) Tyros 'registration bank' files. A great feature of the program is the ability to export 'individual registrations' from several 'registration bank' files and then integrate them into another 'registration bank' file.
I admittedly have not tried PSRUTI yet, but since Heiko wrote this as well, I'm sure it must be a great product, especially with the kind of generous support he gives.
Many thanks to Heiko Plate for his continued ongoing support (and for free even) to the Yamaha arranger keyboard community. This is just one of the many perks of owning a Yamaha arrangaer.
Scott