World of Tanks

Can any tank be added to the "Convert to Free Experience" tab, or is this somehow limited?

9:05 am, January 19, 2014 OK, I have added 4 tanks into this tab; a US T18, a US M12, a Tiger ll, and the Soviet LTP, which already came with it. I know that the tanks have to be completely teched out. Now, I am trying t [..] View