I'm trying to hold myself to a pretty high standard of craftsmanship, so it stings a little bit when I discover that I need to rework something. The slider travel was one where I kicked myself. The LLE fiberglass is simply not going to fit perfect. I tried several ways to get rid of the wave at the trailing edge, but at the end of the day, it's just not quite the same shape as the wing, so something has to give somewhere. I've seen some people scallop the edge which probably mitigates or masks the wave somewhat. Weighing it down assures that the amount of wave stays the same between each false rib, and prevents the wave from lifting the trailing edge away from the false ribs while the hysol cures. I figure it'll certainly be less wavy with the LLE than without.