My wife has a pair of Dynafit Gaia's. They sized the boots to her shorter foot; fit is perfect. Longer foot needed a punch. This worked fine but the plastic (pebex?) will not hold a punch. Three different people tried; works fine for about 5 days. Toe box grind did not solve the problem. Nor did a lift. She has a custom footbed.
Will grinding out the heeel help? She doesn't need too much space, since the punch did work. Or will a heel grind cause other issues?
I may just buy another pair and mix and match sizes.