I didn't mention it, but when I was in possession of him from Sept 2010 to June 2011 the humidity was fine, and he still had bad sheds.
I'm not sure of the weight, I don't have a scale, I'll pick one up soon. He has a hide sitting on top of a UTH, surface temp is regulated by a thermostat and is around 90 F. This is where he spends all of his time.
I'm measuring the temps with 2 analog thermometers, 1 digital thermometer. and the Humidity with 2 analog hydrometers and a digital hydrometer.
But yes, this snake has had around 8 unsuccessful sheds in a row (never a good one) with all the ones that I was around for having proper humidity.