It really depends on what kind of water you are drifting, is it real snaggy? Are you casting upstream to get into a slot? Sometimes you want to have a slider, other times you will not. I prefer lead, but will use a slinky if the bottom is real snaggy, or you could use lead with a drinking straw around it, this also snags less, cause straight lead seems to stick to rocks. The options are many. The most important thing is to know what your lead feels like when tumbling down the river, so you can distinguish those sometimes light takes.