Ok I just want to point something out here.
If this tuner has never done a Rocket and needs to learn what works and what doesn’t,
2 days is very reasonable if he’s manually doing full ignition mapping and fuel mapping and doing it with an eddy current dyno.
For just fuel it’s a hell of a lot quicker. That said, if he’s just doing fuel, 2 Days is quite a lot of time and he may just be quoting a safe time frame when he’ll be able to work it into his schedule.