In a website I read that once you reach 20 any xp you earn it transfered to any other created charecters. Does the game still do this cause I can't tell.

I cant tell either... My poor unused heavy and medium need exp for when my noob friends come over to play!

as far as I can tell, no. but Im not 100% either

That is a negatory kind sir... the developers said that they took that feature out... BOO! lol