Absolutelly...YES!!
One of my best fishing days in my memory, was in an alcaline lake full of small tan scuds and incredible strong and fat pale-blue rainbows. Patagonia remote lake, me and two friends. We wathed the trout signs and tried docens of patterns without results, until notice the scuds. Eureka!!
We tied some #14-16 scud imitations in minutes...just some dubbing and wire on curved hooks and the fishing began! I can't forget that experience nor the unique bows, ultra muscular and football shape between 2-6lbs. Scuds work!