Have read a lot about the quality issues of the DI on the helix units that use the SI beam to develop the DI image. Can I install a dedicated DI transducer for DI and the HSDI transducer for SI, switching between the two as needed? Don't know if image is created in the core unit or the transducer. Hope this makes sense to someone as I am not clear on exactly how these units generate images.

Thanks in advance.