I realize im late to the party but i would like to say because i didnt see anyone else say it in the replys i read,

it was kind of obvious that robyns snakes hard bell wasnt that big, it was long but ive seen some where its like 3-4X the snakes width, so i would say if u think that ur snake can pass it with help it will probably be okay, but this wouldnt work for every snake as every hard yolk is different,

so i would take it on a case by case basis.