From my experiences filtering by difficulty tags, I've found that in terms of difficulty,

• Div 3 1500 ~= Div 2 1500
• Div 3 1600 < Div 2 1600
• Div 3 1800 << Div 2 1800
• Div 3 2000+ <<< Div 2 2000+

Has anyone experienced anything similar? I typically will avoid Div 3 problems during practice sessions as a result, has anyone done anything similar to work around it?