My personal record was ~4.4k on Susano using mostly 3.0 rotation and some b4 during opener and when foul was almost off cd during umbral phase. It seems.. awkward honestly, i'd like to use b4 more during umbral but then astral rotation feels so tight and cluncky, it just not worth it. They should buff astral/umbral to 15 second and maybe give us 500-600 additional mp to make it better.