Anyone had any experience with fader ND filters? I'm deciding between just a 3 stop or getting a fader which advertises 1-10 stops. It just seems odd to me... I can get the 3 stop for $80 or I can get 1-10 for $90? I'm assuming quality is the expended variable here... Whether that`s quality of the images or quality of the filter itself; I don`t really know! Any feedback would be welcome!