It would probably be fine. If I remember right, that's a long riser... 22" maybe? It's very stiff and flat where your 'oops' butt splice would be, so structurally you should be ok. I would bevel the two pieces on 45 degree angles, gouge them with something to roughen the gluing surfaces, and glue them together with Smooth On and a shop light for heat. The only thing is, you might see that tiny edge of the glue joint from the side of the bow when it's done. If you think that will bother you, order a new piece and use the piece that's too short for patterns, glue applicators, etc.