Replying to Lange/Full Tilt - Size difference

Hey there newschoolers,

Do you know if the size of the boot differs too much between Lange and Full Tilt?

The thing is that I have a pair of Lange right now, but I want to change them because they are too stiff. And I want to order online a pair of Full Tilts, but I dont know if the size I have on the Lange must be the same on the Full Tilts.

If there is someone that have ever changed between this two brands I will appreciate his/her opinion.

Thanks in advance!!