Thanks for posting. I have had a Domino 500 for a year or two and enjoy it a lot. I have found it to be much more useful than a plate/biscuit joiner. I like Titebond III also, but just found out they make a brown Titebond II that might be good for walnut, but have never had a problem that brown glue would have solved.
I'd like to see pictures of what you are doing. How big are your slabs? Making a table? What are you doing or a base?