The whole thing is becoming more about mental challenges rather than physical. Last year I got to do the leigionaires loop where you get to go down fire in your hole, the big slide with fire at the end of it. To get there they put in 2 extra low mud crawls which was all good but then they put a tunnel filled with electric wires in it before you get to the slide. I skipped that bit, my first attempt at TM in 2013 I did the electric eel and blacked out after a zapp to the head.