The LD from QAD was one of the first rests on the market which featured the lock down function to prevent the launcher from bouncing back up and contacting the arrow shaft. This rest is still an excellent choice for the archer who wants full containment and 100% arrow clearance but doesn't need all of the bells and whistles of the HDX. This rest is compact, lightweight and just plain works. FeaturesTotal arrow containment even at slow let downOnly drops when the bow is fired not when you let downLDT- Lock-Down TechnologyEasily adjust the timing cord with clamp of cord lockNoise reducing laser cut feltBreak-away safety featureVertical, horizontal, and over-travel adjustmentsPrecision CNC aluminum, stainless steel, and Delrin components