Shouldn't be doing anything in Hunts solo. Unless you just happen across a B rank solo that you can actually solo. The harder A and S ranks were designed for a lot of players to take on which means you should be in a party. The whole party's contribution alone can help you if you are late arriving to a Hunt mob.

Today I was late getting to an A rank, and only managed to hit it with 3 skills before it died, but I still got the full amount of seals thanks to my party members that were there before me and dps'd it.

Join a party with someone in a LS (or a few LS) that track hunt mobs. Makes a world of difference, than just trying to go to the mobs by yourself.