My brother created his own map for the Power Commander V that came with his 2nd hand Kawa. Vulcan 1500. He did that because the bike had come with a map that was so rich that the exhaust stank of raw gas. That map had been professionally created at considerable expense ( he got the receipts with the bike), on a dynomometer, at a local speed shop.
I don't have one of these gadgets myself, but I did download Dynojet's free software, played with it, and thought it was pretty straightforward. My understanding is that, if one puts the baseline value into every block ( either one or zero, I don't recall which), one would then be riding with un-tweaked, RE factory ECM settings, and could proceed to modify parameter values as they saw fit. Seems like starting with factory values should be a safe, if unspectacular, starting point.
My brother created his map by trial and error, over a period of weeks, taking note of performance, rideability and fuel economy. Starting with the existing map, and consulting a generic free base map, he progressively leaned out blocks on the map until he felt responsiveness suffer. He also said that as he tracked fuel economy, he initially made large improvements, but then noticed diminished returns as he got closer to the sweet spot. He was MUCH happier, in every way, with what he made, than what the previous owner had paid a pro. tuner to create, and said that both rideability and fuel economy were substantially improved.
I understand that some folks have created or modified their PC maps using feedback from a wideband 02 sensor kit.
https://www.summitracing.com/parts/avm-30-4110Or, perhaps the Autotune add-on?:
https://www.dynojet.com/autotune/