The Smith's pull-through sharpeners are... bad. I have tried all of the pocket pull-throughs they make, and none of them were really worth it. The best pocket sharpeners I have used are the Rapala 2-stage ceramic pull-through, can be bought for as little as $3. For a more manual sharpener that works with serrated blades I would go with the Gatco Tri-Seps, It is basically a 3 sided sharpening stick that accomadates straight edge and mst all serrations (I do not beilve it will work with very small serrations), made from varying ceramics (based on the model). It also accomodates arrowheads and darts/bolts, and should also take fish hooks. The Gatco does just about everything, and can be found for less than $10 (got mine on sale for $5). Hope I helped!