Yeh i watched that... I wished they had gone one step further and had a large food item plus vitamins. Would of been interesting. There was definitly an unarguable difference in growth though.. Its an interesting thought..

Is the growth purely size?
Have the internal organs grown at the same rate as the body size?
Has the growth been healthy for the snakes?
Does it speed body maturity or are they all the same age physically? Ie sexual maturity.