I always found arc sounded better off but not sure on the new generation. It will probably depend on your system and room. The trick I found is to restrict the amount of boost and find the natual room gain of your speakers and room so that there is less of a delta. It is always better to cut than to boost. Genesis usually gets it pretty close but you may have to tweak the speaker levels when you get more practice. Taking more measurements and varing the height of the microphone also help. You can go up to 10 positions. I usually don't see many people using the tilt but it was refreshing to see someone else that uses it also. It is usually done to track the natural roll offf of your speaker rather than boosting it flat. YMMV.
These settings will give you a good house curve similar to a harman curve
Room Gain: 2.0 dB
Room Gain Center Frequency: 200 Hz
Deep Bass Boost: 3.0 dB
Deep Bass Boost Center Frequency: 50 Hz
Tilt Level: -2 dB
Tilt Start Frequency: 1000 Hz
Then setup a few other profiles like this an then try limiting Maximum Correction Frequency: 350 Hz Or changing Deep Bass Boost Center Frequency to 80hz or removing the tilt