Have not tried any yet. Interesting information is available from their site if you click on one of the options for purchase as you get a page of information about sabot and powder selection relative to inspecting spent sabots. I copied it for future reference.
I saw that also. Thought it was interesting. I looked for the skirts from my Sabertooth bullets last time at the range. Even though they're red, I couldn't find 'em. Maybe next time.