Thanks! One thing that I've observed over the last year or two is that redfish will almost always stop to eat a crab fly if you can get their attention but when resting they sometimes seem less inclined to chase a shrimp or minnow imitation. I keep tinkering and developing every time I have the urge to sit at the tying bench, and here are a few of the latest crab efforts. These are downsized to work with the 4wt and 2wt on those slot sized fish that don't take long to get to the net.
Below is a comparison of the fluffy size I throw on the 6wt and the little Merken style I use with the 2wt.