turbojoe, et al,
How are you blocking it? Cardboard, ducttape,...? Please provide some details if you are: C10 v. C14.
I'm a bit north of you in NH. For example, when I go to work at 6 AM it could be 30 degrees F, which could use some blocking. (I don't mind the brisk morning rides to work, they wake me up) But, when I'd be coming home from work at 4 PM it could be 60+ degrees F, where I would not want any blocking. So, I would not want it blocked all the time. It doesn't look like there is an easy answer for the C14.