Yesterday, I decoded level 6 map at 98.9 (98.8) Cartography. Considering that I shouldn't be able to decode even level 5 maps at this skill seems like the whole map system might need to be looked into. Here are the skill levels from stratics(2000): Map Level - Skill Level 1 - 0-70% Cartography required 2 - 71-80% Cartography required 3 - 81-90% Cartography required 4 - 91-99% Cartography required 5 - 100% Cartography required