In 2001, Smart Parts released a variety of upgrades and enhancements to the Impulse line, including the Vision eye system, upgraded bolts, improved valves and internals, and other smaller upgrade components. The Vision electronic eye system was particularly popular since few other markers were available with such a part from the factory (this has since changed, and the feature is a near-requirement from manufacturers). In 2002, the electronics were redesigned to the "Cricket" version, which involved a more reliable circuit board that also used more developed programming.