Dwarf retics are not small snakes, being in the 12-14 range. What are called super dwarfs are much more manageable. There is an adult pair offered on KINGSNAKE today that are seven and eight feet respectively. Reportedly, these pair has produced one hatchling that was 20 grams. Normal retic hatchlings are in the 120-150 gram range. Now here is the real issue. Has this trait been set or are we going to see "throwbacks" that mature out at 16 feet or more? We shall see.
Frankly, to me part of the allure of these giant snakes is their size. They are just majestic. When you are around a 20 footer, you really feel like you are in the presence of something ancient and special. One does have to make special accommodation for the really big ones. Anything over 16 feet, really should have a room of it's own, just like any other permanent member of the family.