If you want high quality rod ends that don't need changing all the time, but don't cost the earth, FK Bearings have some superb options and we offer them all. You can't really over specifiy on a rod end, apart from it costing more than necessary, but you can definately under specify! Avoid the cheap ones all over ebay, you'll spend you whole time changing them after every event, if you need any help choosing just shout!