I have the regular ones and the are much higher quality than a lot of OEM racks. They also have a 5-year warranty. They sell replacement parts for commonly broken pieces like elastic and the rubber board protectors. I love them and have two, and a monster tower mirror.
Things I ALWAYS look for in tower accessories: 1. quick disconnect so you can collapse the tower,
2. plastic collar to protect the tower from scratches when you move the rack on the tower
These racks will also hold skim style surf boards. There are little 'tabs' on the rubber board protectors that I had to lightly trim with a pocketknife to allow thicker boards in the rack.
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