Many of the responses above contain good advice on how to approach the situation. I've had both balls and boas that got nasty on me when temps in the tank/tubs were too high. Dropping the temps a few degrees always seemed to resolve the issues for me. I had a Brazilian Rainbow boa that would attack the glass of the tank whenever anyone walked through the room. I dropped the ambient temp to about 80, from 84, and dropped the hot spot to 90 from 92. Cool side hung around 76-77. Within 48 hours she was like a different snake. Never struck the glass since that day. Previous to my temp adjustments, she never showed signs of being too warm as she almost always stayed in the hot side hide.
I'd suggest removing both lamps, especially the daylight bulb, or dropping the temps on whatever you have controlling the remaining bulb (I don't recall reading what you have controlling your UTH or lamps). Good luck, and I hope he mellows out for you. There's always the chance that he just has a nasty disposition and will never chill out.
Also, get yourself a snake hook for those situations where you need to move an aggressive snake. I got one on the big auction site for $5 that works perfectly.
Reply With Quote