Bob&Patty
Founders of SoCal Chapter
I believe they are...have to look it up. OK, did you measure the height if the Sailun's?? How much difference is there. For every inch of height you only gain a 1/2". Its the same with the width. You only make your SD a 1/2" higher. Did you mount a Sailun and put it on the SD or are taking someones word for it. A 1/2" either way will not effect anything on your SD.