I have the $69.99 WSI 6' special. Last summer I added 6" panels to it and my reception got a little better. Enough to please me for a while. Last week I added more panels to it and here is where I need some help. I went from Cm 180 to 221 Cm. The antenna depth is now 48.3 Cm. The focal length is 63.200 (24.9"). According to this new numbers I'm suppose to move the scaler ring closer to the dish and I have no idea how to do this. Any ideas or suggestions!!!