A few things that were interesting to note... lower down the river at Sesheke the river bank is more structured, having coves and points and all those interesting things to target! During our first 4 days on the water we were getting a good amount of hits casting into shaded areas. As soon as the spoon flashed out of the shade into the sun it would get bumped, although not many fish seemed keen to follow it too far out into the open.
On the other hand up at Lukulu there is not all that much along that line of river bank structure. What we did find was plenty of reeded sand islands and awesome underwater topography! You can be sticking a straight line over the water and pick up depths on the sonar varying from 5m to 0.5m in the matter of 15m distance! There are serious holes and drop offs all over the main channel, which happened to be where we did most of our trolling anyway. Another incredible thing we saw on the sonar was at the Kabompo river mouth.... 12m depth!!! Obviously we did a few turns there every time we went up that way....and every time the strikes were extraordinary! Very few fish were actually pulled out of this area and very few were on long enough to get aerial and show us what they were made of...but the takes were phenominal! Guaranteed plenty 10kg plus tigers all over the place in that big round hole where the rivers mix their water. The area is about a k across i'd guess and sort of circular...now on the Kabompo side there is that seriously deep water i mentioned earlier and if you float around a bit you get a good picture of whats on the go there. The main Zambezi current defines the oposite end of the arena and cuts an impressive 5m deep narrow channel right along the bank creating a drop off from ankle deep water in the reeds to serious predator "DON'T DO IT NEMO!!!!!" snack tray rendevous......2 words....spoon heaven
So the middle of this big swirling hole is on average 2m deep but it changes quite regularly and if you like trolling then this is where it gets really exciting! Space enough to trail 150 meters between you and your lure and still turn very comfortably keeping tension on the line (I mean its a km to the other side, theres plenty of room!) Its absolute paradise!
The other river we spent a bit time on was the Lungwebungu. The area around the mouth was also close to 5m depth but not as big as the Kabompo mouth, and very quickly back up to 1,5 to 2m....not surprising we saw Tiger Camp's boat there 4 days in a row!

Anyway, its hard to describe. All I can say is we learned a WHACK and we are going again soon.
If you want to be part of our next trip, please let me know. Cheers