My understanding is that they built the Power Plus from the bottom up (2002 and later) and didn't use parts from S&S (which is a great company). The oil pumps were also made off shore and came back in a variety of tolerances and are also suspect. You are correct, though, that once rebuilt (that would be a fee of $5K) to the proper tolerances the oil pumps and bottom ends work very well giving creedence to the original design.