I created a zip of T5 and Genos (converted to T5) styles that are not on the SX900, and I uploaded this as an attachment to a post I made yesterday at the PSR tutorial forum.
I have all of those older styles, and I don't have the time to look for duplicates. Being an organized style librarian can take hours, and I'd rather spend my time making music than adding an OTS to every converted style that has a missing voice.
I haven't posted here for a while, but I bought two SX900's. One came, and the other one's coming. I love the assignable buttons. Very happy overall.