Does anyone have experience with this stuff? I am trying to figure out what I want to buy for duck season and this stuff looked good. It is also really cheap compared to some of the other stuff out there. One more thing I just got my Macks PW catalog in the mail and it said on August 1 there was a rebate of $150 on wingmaster hd when i bought ten boxes. Did I read that right? Half price for a case of wingmaster. Any help would be appreciated.