So I'm finally moving away from horrible hand-blocking like an idjit. I fight single blue, or occasionally florentine, so I have to rely on my speed and my weapons to protect me most of the time. I find one thing that is very obviously a problem though...
A good amount of the time, when I'm inside blocking a vertical swing, the weapon I block slides down my sword, and crushes the unholy **** out of my thumb. I have received far too many thumb injuries fighting, and I am convinced I am doing something wrong, I just cannot figure out what. Most of my realm seems unsure of what to do. I'm considering just adding a cross guard to all my swords, but I'm sure there's something wrong with my technique that can be corrected to allow me to safely inside block vertical swings. So... What is it?