Trial and error on your own is the way to learn. I also had to do all the figuring out myself. Fish mainly a river, downstream trolling dead slow,,,,, came up with an over size lip to cup more water, dives her to the bottom while barely beating the current........ but the big lip keeps her out of trouble running over bottom,,,,, by far the best bait I've ever run for this...
Still learning and having fun..... congrats on the catch,,,,, got a 50" and a real fat 49 within just over an hour,,,,, man it pumps you up !!
Cool your son is in on it,,,,,, have my oldest 13 years old working on his own model now...... all ready has boated some nice fish.....
Have fun with it....