I'm having trouble keeping my Rapala fillet knife sharp when filleting fish. Not an issue with crappie but if I keep a sandbass I have to re-sharpen every fish.
I am going to say that you have a "bad" Rapala? I have cleaned 75 sandbass with mine, w/o having to resharpen (I did resharpen, after I finished though).
Oh, I am a Lansky fan also.