Software for revision v1.03 and v1.04 servos is one and the same. The v1.04 designation denotes the latest digital amplifier equipped servo. The v1.04 revision servos MUST be programmed with an updated HFP-10 Programmer.

All previous revision servos (pre v1.04) realize NO benefit, added or program enhancements between v1.03 and v1.04 updated Programmers. If you don't have v1.04 servos there is no need and or benefit to update the Programmer if you already a revision v1.03 Programmer update.

Programmer updates generally take 1-2 weeks work load specific.