I have found that my leaf blower (575cfm) blows things backwards if it's too close to the nozzle. I think the air tube is not long enough and the tip options don't provide for forward blow. I find that I have to blow everything twice, or very slowly, or bend down to get closer to the ground. I would love to see longer tubes and new heads soon. It doesn't feel like this product was field tested (I have other EGO products that do work well).