I have heard some ppl using PVC to tape up their wooden handle before applying their replacement grip. Is this step really necessary? Assuming you are using PU grip, will sweat necessary go thru it and onto the bare wood? The manufacturer has never taken such a measure given that they left it bare in the first place. I wonder why no one apply a think layer of wood lacquer on the handle to make it permanently sweat proof? But in the first place, does sweat really can GO THRU the PU grip?