You should have a hide on each side of the tank, identical so your bp does not prefer one over the other because it is more secure. A bp will chose security over warmth often. UVB is not needed because bp's do not require uv light to generate nutrients in the body like other repiles (as far as I know). I know I have already mentioned this but how are you controlling the UTH's? The UTH's will not solve your humidity problems completely but it should make a big difference. You may still need to spray the tank once or twice a day and monitor it from there. Cover 3/4 of the top of the tank to keep that humidity in.