Pop writes:

No, it's very valid advice, especially considering the context of the
question. You've obviously never been centrally involved installing a
door like that or you would realize it.

Bunk. You cannot remove panels from a sectional door without unwinding the
torsion springs. I defy you to find any such technique in Clopay's library
of installation manuals:

http://www.clopaydoor.com/installman.asp