I started trying to cure them last year and had some success, at least with curing them and keeping them from rotting. I caught 1 winter run and 6 Chinook with them last fall. The first try wasn't pretty but it did work. Hard and brittle and not very durable but caught fish.

Second batch turned out a lot better. Much more flexible, a lot more durable and simply look a lot better. They last a good 5 casts if not longer and have a good sand shrimp smell to them. Color is a little off but I am working on that. This batch has accounted for 5 hook ups and 3 landed summers.

This last batch, untested as of yet, seems to be better than all of them. Will have to see how durable they are as I haven't been out in a while. Hopefully they will produce at least as well as the previous 2 batches, hopefully better.

For those who care:
Boil shrimp in salt water for 1.5-3 minutes
Cool
Mix standard sugar, borax, salt, water mixture with favorite cure.
I leave mine until color is good, about 24-48 hours.

And they hold up just fine after freezing.