• If it doesn’t work, take it apart, clean everything (again) and keep trying
• If the stitches don’t clear the latches (easily, on their own), and you’re using plenty of weight, your ribber dial is TOO HIGH.  It’s not a tension issue or a needle issue, it’s simply because the dial isn’t adjusted properly.  It seems counter intuitive to lower it, but it has to be lower for the needles to work correctly
• Stitch tension adjustment is very touchy - a small adjustment makes a BIG difference!  It’s not like the v-cam tension at all
• Ribber timing is tricky - just when you think you have it, you have to tweak it again.  Make TINY adjustments.  A quarter turn of that screw can make a big difference.  An entire turn might be WAY WAY WAY too much!
• If you yarn carrier is not where it needs to be, that can cause all kinds of problems
  • You might break/bend latches (and possibly destroy needles entirely)
  • Latches won’t open
  • Your timing will seem off, when it really isn’t, the needle just can’t grab the yarn

When you get it all right, it sings :)  You can crank out an entire ribbed sock with no trouble at all… amazing!