I was considering putting trim tabs on my Arima SR 21, but if I do I will have to move my sounder transducer (Garmin dual frequency, new model) toward the center of the hull nearer the keel. My questions is, where do you locate yours if you have trim tabs? The transducer instructions say to keep it outside the propeller diameter by several inches, but that might be impossible with trim tabs. Is it OK to put toward the center of the transom even if it is in front of the shaft and prop, or do I have to move it to the sponson? Will it cause interference with the flow of water to the prop? Any sage advice?

Thanks,
David