He's finally going into shed which is great because I feel very guilty every time I see his snout. Nice pink belly last night and he's gone into shy don't bother me mode although he did take two weaner rats last night which is unusual for him pre shed.
I know that it will probably still be visible after just one shed (and that there is a chance that some mark will always be there although fingers crossed) but I will feel so much better to see that it is healing/fading. I will post pics after shed.