Well here is my son and his sled after competing. He made it to the 3rd tier on his 3rd run before dumping it. He is o.k. just a little stiff and sore

Picts of his final run

Looks like the sled did,nt do as well as your son.

He was a little stiff and sore for about a week The sled is still in the garage needing more work
On this third run was when the sled got the most damage. It made IT all the way back down the hill--- unfortunately.