Hi,
My lazy,bad shedder does indeed have a lot of scaring caused by wrapping round the heat source as a hatchling - at least 4 large patches with the 2 at the rear being so bad the scales that grew back were extremely mis-shapen and pure white. You can see both patches slightly at the bottom of this pic.
His main problem is he simply doesn't try to shed very hard at all - he makes either a derisory attempt at getting the top of his head clear then stops or makes not even that attempt. I think in the entire time I've had him he has shed on his own maybe twice - now I watch him and just start helping as soon as he gives up.
This is one of my girls but she shed's fine I just caught her as she was starting and thought it made a great picture.
dr del