Daiwa SP Minnow Floating Black Purple Blurple. Daiwa SP Minnow Swimmer has a great slender shape and a weighted ball bearing system. The Ball Bearing System allows the weight to transfer from front to back inside of the lure, but when in the water the weight spreads evenly to create an amazing action. The SP Minnow comes in many great colors but the most effective color schemes would have to be the Mackerel colors. You can cast it upstream or downstream this lure is deadly effective any way you fish it.