The collapse does very badly, the son arrived, the rubber began to eat up, it seems to have exposed all the corners, everything is OK. He left - he leads strongly to the left, he goes back-it's already closed. He goes to the service station, they tell him "ball stuff", they ask how you did it like that. In general, I do not advise you to go here to make a collapse, it is better to find a pro, but here a person works who is not in his place!