Does fertilizer spread faster and flow quicker if the humidity is low? The flow of my Barricade product was great today. While spreading with my Permagreen Ultra, I think I had to reduce the control dial to a lower setting, just due to dry weather. I found I must apply 50 pounds in just over 3 minutes and 40 seconds. Irregular, but once I ran out only 10 seconds too soon. Also--is there any difference in flow rate if the spreader is full, as compared to half, or a quarter full? I hope not; calibration would be a whole new ball game.