I was told that Chuck the stocker might be able to help with this question. Is there a way to tell the gauge of the splinter forend wood of an L.C. Smith? Is there a distinguishing characteristic or measurement? Sorry, I don't have the experience to identify them visually nor the luxury of a SXS collection to allow me to individually fit them. The difference in barrel grooves seems minimal but I have noticed variations in the raised rib of wood ahead of the iron fitting underneath the barrels. Some are flat and wide, some are narrower and higher. Your help and the comments from anyone else will be greatly appreciated. Thank You.