Can someone tell me why im not seeing an option of mounting a 998si transducer as a through hull (with the new style transducer—XPTH 9 HDSI 180 T ) in the step up above the drain plug on a Puma FTD 12 model. I have seen this on many boats and through expierence know it works like a charm. Also concerns about damage are a thing of the past. Last edited by drharvey on September 27th, 2011, 2:52 am, edited 3 times in total.