My thoughts are when we are riding machines that cost north of $15,000, Carrying them in/on expensive trailers/decks, are paying for premium fuel, and are paying $200 for a SPARE belt, not to mention all the avy gear, two way radios, several hundred dollar helmets and other clothing/gear etc, I wouldn't quibble over $300 extra for the best lockout system (which appears to be the C-motion) over the cheapest if I thought that it would improve my riding experience. Some guys spend several $1000 to trade every few years and sometimes all they get is a colour change. Bottom line, IMO if it's worth doing it's worth doing right. Otherwise don't bother.