Originally Posted by Mad About Drums
By removing a chunk at the butt end of the sticks, it will affect the balance of the sticks.
Are you sure those sticks don't do it for you? You can sell them. Or put them away, try/buy different sticks and return to them just to check whether your hand feel might have changed then. I've learned that stick feel can change over time.
Sure you can rework them - shortening or reworking the taper etc. Personally I wouldn't bother because you still don't know what will come out in the end. Much easier to walk into a music store and test a few dozen sticks - you might find your dream sticks.