I should have my new Big Jim "Dark Timber" arrows in about a month...+- and although they aren't indestructible, I have found them to be very tough.
Just playing around last week, I shot a 500 spine with no footing in to an oak tree and then three times through one side of a 55gal steel drum.
Unable to damage it, I turned to a cinder block and fired away. The insert was pushed back a 1/2". I flexed it and shot it again. Another 1/2"! After 5 shots in to the cinder block, my arrow was about 2"s shorter then when I started, but otherwise un harmed.
There was no footing on the shaft and I was using a 67lb bow at my 32" draw do test the durability of the arrows.
I will have more out there when they are ready, but they will take popular components and at a price point that will make every one smile in a good way.
All that and a very attractive wood grain pattern on all spines all the way out to 800 spine!
BigJim