That's not a pure dwarf, it's only 25% Jamp (dwarf). That snake is still 50% mainland, but 25% super dwarf, so it's hard to compare. My albino retic is 50% dwarf (Jamp) and 50% mainland, just two years old and about 25 pounds already. You really need someone with a pure Jamp to know how big they get, and what kind of feeding frequency they are doing to get that big. The more you feed the faster they grow and the bigger they get as with any snake.