I kinda feel like Harvest Moon should be saved for Arcane Circle windows on bosses for that yummy C+HM+PH wombo combo. Harpe x3 is always a gain over HM but if it's precharged I feel it would have better value. 660 vs 990 over 7.5 seconds Harpe wins.

Precharged 660 vs 330 then HM wins.

Potencies on Reaper attacks are misleading due to Death Design buff. I'd prefer it if tooltips were updated with potencies taking into account the actual potency with the debuff applied.