Replying to In langes getting fulltilts. Will it work?

I have been told that since I am in langes, I will fit in full tilts because the toe boxes are a similar size. I'm a 27.5 and my boots have a sole length of 317 but the full tilt 27.5s I'm about to get have a significantly smaller sole length. My gut is telling me that sole length doesn't have anything to do with how I'm going to fit into the boot. I just need some verification as to whether or not what I've heard is true.