I need to do that in the other direction on my current project. It ended up a little too long and now if I move it forward,as the butt stock is shaped,I will be moving the butt plate past the end of the stock. I will have to file some of the butt plate off so it doesn't hang below the edge of the stock. I assume your stock isn't shaped yet Single Malt. Could you just redraw the pattern on the stock to make it fit and look OK.