During a visit to Reelfoot Lake I saw a boat in a parking lot which had two transducers on the trolling motor. One in the normal position on the bottom of the motor unit, and one on the shaft just above the motor unit. The upper transducer was pointed straight ahead, not down. He had made his own mount with a clamp to go around the trolling motor shaft. I waited until the owner came out of the restaurant and asked about the setup. He said he likes to fish the many stumps in Reelfoot and he had a seperate 2D unit that let him look straight ahead when approaching the stump.

Not exactly a Live Scope or Mega 360 but a lot more info than with just a "regular" FF/DF.