I've been asked to submit a bid for my local extension office. They have detailed what they want as far as applications and mowing. They are asking for snapshot pre to be applied 3 times a year in the beds and garden pathes. I've never used it and don't do much bed preemergents. Do you guys like snapshot? Is there something better or cheaper that I could use? I figure they would be happy as long as some form of pre was applied.