There's already a disparity front face to back face on the spine wear front so you could say that is not aesthetically appealing. Regardless, it's not going to take much to reel the spine in and get heel contact anyway. Either recommendation would make the razor sit better on the stone. I do get Glen's three layers recommendation as it will show you pretty quickly if someone freehanded the thing like a knife in the past, but do use an appropriate amount for the geometry once you get the lay of the land. Calc the bevel at 3 or 4 points on the edge if possible, that helps also.