I have tried circular bored beads on jig hooks and for certain combinations, they work ok the "normal" way and some where they work better reversed. There are some combinations of bead size and hook size where you can't get the bead around the hook angle, either way. With a slotted bead, the range of bead/hook combinations is much wider. Best advice is try it, if it works, great. If you're buying beads, the slotted ones are more versatile. They work fine on straight shank hooks. They sit a little off-center, but you can affix the bead in the orientation that makes the fly ride the right way in the water.