I know people have posted occasionally about something to put in the toe box to reduce the open space. I saw these being reviewed on youtube. Nothing amazing about them it seems, but someone that is commercially selling a solution made by Adrenaline Design. I've spent far more on many a dumb thing so I ordered a pair to test out as I hate the open space feeling above my toes. I'll post a review once I get them and try them for a bit. So you can see what they are: (mods remove if not allowed)