I havent had any up until the last club ride at Boyette. I got home, and sat on the couch, and had 3 crawling on my legs. I did stop frequently, so Im thinking that had alot to do with it. Ill go with Scotts answer and ride faster, and dont stop. Although I do think I picked them up at the begining of woods trail. The grass was high and we took a very long break.