Blade Size giving pain

I don't have long fingers, or bigger palm. I used to use a smaller blade (Schlager Carbon Blade) , and recently I moved to a defensive blade (Butterfly Joo Se Hyuk). In the earlier blade the shoulder was very less. The new blade I have has more shoulder, and is wider than the previous one. I have some problem in controlling the new blade because I hold my palm (handshake V) close to the shoulder, also I get sever pain in my pinky (finger). In the earlier blade I did not have any pain, and was easy to control.

Any idea to ease the pain my pinky finger? Can I sand paper the shoulder, and make it somewhat equalent to the previous one.

the manufacturers usually pay a lot of attention to how the grip would feel in hands. even if u wanna sandpaper it, make sure u do it very delicately so u won't change the effect of the blade. I once did this to a STIGA  CARBO OVERSIZE and made it somewhat smaller at shoulders, it became a total disaster!!! Plus ST grips normally give u a more comfy feeling for the baldes with wide shoulders!!!