Got my Garmin livescope over the summer. It is mounted on trolling motor shaft. The Garmin product is exceptional, but when setup on the trolling motor shaft, you can forget using both spot lock and livescope. When the trolling motor rotates to maintain position back and forth, livescope cannot stay on what you are fishing, so it's ineffective. All that money in electronics and still using marker buoys. I'd be interested in hearing feedback from someone with livescope on separate pole.
I have Active Target on a separate pole. First time out using spotlock with transducer mounted on TM I decided that wasn't gonna work. Got home and ordered a Rite-Hite Turret. Wouldn't do without it now.