Ok, so I finished building my 4x2x2 enclosure, but since it is done I'm not sure I really like the hinged doors on top. I currently have my basking bulb hooked up to the top left door but I'm really starting to think I should just go with an all screen top. Do you guys think this will be fine or will it be a pain to hold temp? https://docs.google.com/file/d/0B_3vTi9VWhdCOTV1d0dVSHVRUVE/edit