Again I would like to thank you for all the great help and information that you have provided me with. I think we got the planter set to the population we are hoping for. I do have another question though. This planter came with a John Blue ground drive pump and a Hawkins fertilizer system. Since we always put down the fertilizer down for wheat that our Elevators suggest, our agronomist doesnt think we need to put anymore fertilizer down for the double crop milo. I was curious if anyone has taken a liquid fertilizer system like this and used it to spray herbicide behind the planter. If anyone has done this I was wondering if you could explain to me how to do it and what parts I might need. Again any time and help is highly appreciated.