Hey Hank
I use a similar setup to you. I use a Tyros with an XD9 module for the "best of both worlds".
I love the text feature which can be linked to registrations or just loaded when required and wish other manufacturers did this rather than just show the lyrics of kareoke files (which I don't personally use).
I am too lazy and now too old to remember the words to all the songs I ever learned and people are lucky now to get the words to more than the first verse and chorus unless I take along the Ketron. (LOL)
Regards - Keith