They're two completely different baits. Its actually funny how two little worms can be so different. For an extremely tough bite I will throw the robo purely because of its softness, but if I'm on a hot bit I throw the tickle because it is LITERALLY ten times as durable as a robo. On a shaky head, it will last 10+ fish, where as a robo will last two before it starts to twist off the spring from the hole being widened. Its pretty much a confidence thing. I feel stupid for liking the robos more because they are less durable, but the colors flat-out slay. I'd say the ticklers are a better value because they last longer. You also get the aded benefit from the hog tonic.