Another problem with adding enmity reduction for players behind us for old Jumps is that it most likely won't work across parties in an alliance. Since most players structure alliances by putting mages in one party and DDs in another, there will seldom be an opportunity during a HNM fight that DRGs will erase a player's hate. Since a DRG's main priority is dealing damage, most DRGs will be riding their Spirit and Soul Jump timers, using them as soon as they're available. No sane DRG will save his Jump for when some other melee pulls hate.

I know the Devs want to add functionality to Old Jumps, but adding enmity reduction for other players while behind us isn't that amazing or useful. So maybe you can add Stun/Terror to Jump, Attack or Evasion down to High Jump and Super Jump leave be.

Additionally since New Jumps have been added whose bonus attributes (Extra TP, 100% chance of critical hit) are predicated on the Wyvern being alive, I think it would be fair and logical to give Spirit and Soul Jump these effects during Spirit Surge. Presently under Spirit Surge, Spirit and Soul Jump are weaker than Jump. This shouldn't be since technically during Spirit Surge, the essence of the wyvern fuses with the Dragoon. This would make our 2hr slightly less 'meh'. As an added boon, could the Devs add bonus effects to spirit and soul jump during our 2hr? I mean Jump got defense down, High Jump erases TP proportionate to damage. Maybe Spirit and Soul Jump can drain HP/TP or reduce attack speed or magic defense etc..