cloudfront and compression

[GreenGecko]

In order to  get cloudfront to deliver gzipped content I've had to change
from gzip_http_version 1.1 to 1.0, and manually 
add_header Vary Accept-Encoding to the relevant sites. 

What I'm wondering is how this will affect the sites involved - is
gzip_http_version 1.1 faster / slower than 1.0, or are there any other
hidden gotchas??

Cheers,

Steve

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,230741,230741#msg-230741