the in-line weights are a bit more streamlined and the physics involved make them able to troll at higher speeds with less tendency to tangle.

The bottom bouncers are just that........they are intended to be fished directly on the bottom, maintaining contact always. Difficult to do under power in a canoe unless you have a partner willing to do the paddling while you adjust for the depth. Very effective with live bait and I like the slip abilities of the sinker you are showing. They would of been great while drifting chubs. As it were we used bait running reels and regular egg sinkers. It was a blast!

The in lines are not suited for direct contact with the bottom for any length of time for they end up snagged and your bait ends up dragging bottom.

Bottom line IMO, if your going to drift the bottom bouncers would be fine (but so would an egg sinker and a split shot ;) ) but I foresee some hassles trying to troll bottom bouncers out of a canoe.