For a nice summary of my experience with scuds, check out my post of 12/20/2019. I went quite a few years simply living off my supply of orange scuds without a shell back, but by 2019 I was convinced to add this body part.
Every season I experiment with a scud, primarily orange, and occasionally the offering nets me a fish or two. The South Platte River is my location of choice for scud presentation, as the river is loaded with aquatic growth, and scuds frequent this type of vegetation.
I counted my quantities of gray, orange and olive scuds, and I concluded that I can live off of past efforts; and, thus, I produced no additional scuds. I like to keep them on my list; however, in case I experience success that leads to depletion.

Gray Scud
Orange Scud
Olive Scud