“When I watched the slow motion video that shows Advanced Servo Vibration and “old’ style vibration running side by side it clicked. I was amazed at how violent the “old” vibration is compared to the smoothness of ASV. I immediately understood why my Besser Sales Representative, Ralph Schlereth, kept telling me that we needed this upgrade for our Dynapacs,” commented Andy Pachota, President of Best Block Company and 4th Generation Block Head.