I understand the AyA 4/53 is a boxlock model 4 with wood selected for a model 53 sidelock gun, which is a top line special order gun. I have a model 53e in 20 gauge, and it has marble cake wood to die for! Does your model 4/53 not already have upgraded wood on it??? The 4/53 model designation indicates that it already has very much upgraded wood??