He weights 1435 grams, yes they can pull apart.
You are correct to assume that the snake is alone in the tub. He has not locked for me, in fact shown no interest in the girl he has been paired with. The breeder I did get him from says he has used him before. No I have not probed the snake myself but then again I do not know how to probe. I have a friend who is currently out of town that can do it for me.