Ok so I may get some flack for this but hope not too much. I have a Savage model 340 chambered in 225 Winchester that I am looking to make my primary groundhog gun. It does not seem to have any collector value even though it is not that common. The stock that was on is a walnut stock with some checkering. Now a disclaimer, somebody refinished the stock at some point, sanding at least some into the checkering. As a result, the checkering looks "muddy" and not very sharp at all. Since I am the type of guy that tends to scratch wood stocks, I was wanting to do the "marbelizing" job on the stock. My question concerns the existing checkering. I am figuring i need to cover it somehow, and am not sure how to go about it since the checkering that is left is not that deep at places. I was thinking wood filler ( i worked with furniture so I feel comfortable with that). But is there another method that would be easier/ hold up better? What about a "filler primer" something else? I am afraid if I let it the way it is now, several coats of paint will make the checkering look even more "splotchy".