Safety of setting "beresp.do_gzip" in vcl_backend_response

[Nigel Peck]

Hi,

I am implementing compression in vcl_backend_response, by setting 
"beresp.do_gzip" on appropriate Content-Type's. I am wondering if it is 
safe to do this even on responses that may subsequently get set as 
uncacheable by later code?

It seems safe to me, but just wanting to check in case I'm missing 
something. I assume that if a response is subsequently set uncacheable 
then "beresp.do_gzip" will simply have no affect?

Thanks
Nigel