Lots of good info so far. I've got the same saw and had a heck of a time
getting the splitter aligned. My pieces would bind no matter what I did it
seemed. I cut a kerf into a board, shut the saw down, and tried to slide
the board over the splitter only. It fit. That told me that I wasn't
aligned properly. I actually had to bend the splitter a little to
straighten it out (came a bit bent from the factory). That said, I've gone
to zero clearance inserts and bought the micro jig splitter (but haven't
installed it yet). I intend someday to build an overhead guard and use the
stand alone splitter in the zero clearance insert. A couple of other
random thoughts, make sure the splitter is perfectly 90 degrees to the
table. That was one area that I had to fiddle for what seemed and eternity
before it sat right. I also had to add a few washers to move the splitter
to the left a bit. After all this, it cuts great. Hope you figure it out!
Cheers,
cc

ps. I usually run with an extra board on my fence kind of euro style if
you will. More out of habit than anything else. I have it extending to
just inside the rear edge of the blade. Not sure if it helps or not but
hasn't hurt anything.