Dropped my 70-200L F4 onto the carpet from my bag. Advice.

[Atonegro]

I once dropped a 24-105L, but Canon could not fix it. :-((
They said it was terminal, it has passed away, as dead as a dodo....
It fell about 170 meter into the rocks, all I had was a little pile of glass and a few rings.

so much for L build 'quality'!

I phoned the shop to ask if there was any warranty if I had dropped the lens, and the man said ; Bring it along, we will replace the damaged parts and re-align and recallibrate the lens.

When I came the eyes of the man went twice as big....he was impressed....