I have a EX5S, it's a silver and limited version of EX5, BUT IT DOESN'T COMPATIBLE WITH XG!!!! You can only use VL Editor for creating Custom VL sound(This is Soudius-XG compatible), and other parts(AWM, AN, FDSP, Sampling) are not compatible with XG, You can creative a XG/GM soundset, but none of XG SYSEX will not work!! If you want to know what kind of SYSEX EX5S can "konw", it is:"F0 7E 7F 09 01 F7" GM reset, This will initialize your current peform!