I and Kert are trying to figure out the aim component of this right now. We are aware that higher AR with big jump and high BPM would make the map hard, but there there things to consider other than those 3 factors. We are trying to disect the gameplay elements, so everything else will be considered later. Tapping and AR aside, if you can do the map with the relax mod at your conformable AR, which maps would be harder and why? Is it distance of the jumps, the speed of the jumps, the angle, or something else?Conventional logic says that higher AR makes these maps easier, not harder.
Relax is a COMPLETELY different game - you might as well be talking about comparing osu!mania and osu!standard.
As for the actual difficulty of the maps you can refer to the above posters that have a bit more of a clue than I do.