Up to what speed should a transom-mounted transducer be reasonably expected to read bottom (depth sounder)?<br /><br />I recently had a depth sounder installed. When I took the boat out, it would not read bottom at any speed once on plane. I re-aligned the transducer so that the trailing edge was slightly lower than the forward edge (as per instructions found on humminbird and airmar websites). After the re-alignment I can get depth readings up to about 30 to 35 MPH, above which I lose bottom.<br /><br />Should I try any further adjustments, or is this pretty reasonable performance (BTW, my boat's top end is about 44 MPH)? I'm considering lowering the tranducer slightly, but I already get a fair bit of spray and don't want to increase the drag any more than necessary.<br /><br />I realize that knowing the depth at speeds above 30 MPH is not all that relevant (since I likely would not be able to react to a too shallow reading in time), but I just want to know I'm getting optimum performance.<br /><br />Any insight from experience would be greatly appreciated.
