What do you know about top down roman shades? I have some I made last year and they do not cascade (fold over in layers) like yours do. I know I just have to knot them differently, but even after going to the terrell website I cannot figure out how to get them to cascade. In other words, they are secured on the bottom and when I put them down, they go down in one big loop instead of how yours look... folded nicely. Any suggestions anyone?