according to the deskthority wiki
Cherry MX Black MX1A-11xx medium stiff (60cN), linear
Cherry MX Grey MX1A-D1xx stiff (80cN), tactile
Cherry MX Dark Grey MX1A-21xx stiff (80cN), linear
Cherry MX Green MX1A-F1xx medium stiff (80cN), clicky
i honestly can't feel the difference between a ghetto green and a real green but i can definitely feel the difference between a green and a green with a Dark grey spring.
EDIT: sorry for the mix up. the spring i pulled it from was DARK grey linear not a regular grey tactile.