Regarding cracks in new or any stock...the nylon wedges from a car lock jimmy kit with spacers if needed to spread it ( GENTLY! and just enough to deepen the penetration ) plus a double plunger tube of five minute clear epoxy will permanently and invisibly fix those little cracks and chips. Mix the goop on a piece of cardboard and dab it in with a Popsicle stick, remove wedges,apply a little pressure, wipe the excess, wait 15 min(I know it says 5 min on the tube but trust me)sand, then try to find the crack. I used the same method to repair a chip out of a box I carved for my daughter (the artist) and asked her to find the piece of wood that didn't grow here..she couldn't. The stuff flows in and bonds stronger than the wood and its thin and clear so it will match well.TY