Quote Originally Posted by projectsunfire View Post
that's a fairly large difference. Mine is within 5% from top to bottom
It fluctuates throughout the day. The problem that I think is the biggest cause is that where I have been allowed to place it by SWMBO is against the east wall that is across from a window and it puts direct sunlight on it. I notice that in the morning when there is no sun exposure it is a minimal difference.