I pieced together my set from 4 different rusty MJ packs (each had one broken leaf in it). They have held up well, but I'm going to be building a new set come springtime using rust free packs (from Florida). They will be similar, but the extra main leaf will be from an Explorer pack. I'm seriously considering adding a half-leaf on top. For the life of me I can't remember what the name of this technique is, but I saw it in one of my magazines a while back. You mount the half-leaf to the top of the pack facing forwards. Then you make a retainer bracket that hold the end of the leaf loosely to the pack below it. The theory is that the new half-leaf will help fight the front of the pack from pulling up from spring wrap, but won't affect the stuff and drop of the suspension. I wish I had a picture of it, as it sounds really cool. :(