"Most" coated legume seeds are pre-inoculated. Also, check the test date. Old inoculated coated seed needs inoculating again. The soft drink thing to get the inoculant to stick is also no longer recommended. Use water or a water/sugar mix, and only a couple oz peer 50 lbs. A little goes a long way. Wet lightly, then mix to spread the water. Add inoculant and mix again.