I have never experienced so many problems as I have this year with product that will not flow properly through my permagreen & lesco spreader. It seems as if the fertilizer just sucks water out of the air, clumps and jams up the holes, I am constantly having to bounce my spreader and put it on it's side to get it flowing right. My biggest problems are coming from Lesco formulations. The standard particle was the worse, I have switched to an elite particle and it clumps like kitty litter. One day I spilled a bit of fert on the floor and the next morning it turned to liquid. I don't remember having issues like this in years past, was there a formula change? I noticed the bags are made to breathe, are they picking moisture out of the air while in storage??