I have one retainer who is a Fisher. He is now level 71 and unable to advance further. I do not know why. I thought perhaps it is because my level 73 Fisher needs to complete some quest before my Retainer Fisher can advance beyond level 71. The only quest I receive from the Fishing Guild, other than a level 3 quest, says I have to catch a Titantic sawfish, and then, as if that wasn't difficult enough, I have to catch an additional something. I really don't want to do any more of this.

Before I convert my Retainer fisher to a miner, which seems to be much better than a fisher (he can gather 100 crystals once he reaches level 80), I thought I would see if anyone sees advantages to having a fisher for a retainer and if they would please advise me as to what these advantages are.

Obviously I lose a lot switching my level 71 fisher to a miner since he has to start out again at level one. But the fisher seems basically useless to me.