Gary,
You bet there is a difference between these three lures.
The Zip and Sonar are used in similar situations. Mostly in rivers or other areas with some current. You don’t have to have current but it is used in those situations most often.
The biggest difference between Zips and Sonars is the amount of pull required to get the blade vibrating.
The Zip requires much less pull than the Sonar.
I always carry both of these lures in my box. Some days the fish will want the more aggressive blade, (Sonar) and others the less aggressive blade. (Zip)
Both of these two lures pull alot of fish out of Lake Wisconsin for me.
I’ve yet to find a situation on the waters I fish where the Cicada will out fish the other two lures. As a matter of fact, I can hardly catch a fish on the Cicada at all.
If I remember correnctly, Tom Gursky likes the Cicada’s on the bodies of water he fish’s in.
JWB