[j-nsp] upgrading M120 directly from 8.5 to 9.3

[Chuck Anderson]

Juniper recommends not upgrading more than 3 releases, but 8.5 to 9.3 
would be a 4-release upgrade (9.0 - 9.1 - 9.2 - 9.3).  Has anyone done 
this with success?  It seems strange to me that Juniper wouldn't test 
and support an upgrade from one E-EOL release to another without 
having to jump through a non-E-EOL release, and in fact a release that 
has actually reached EOL.

8.5 reaches EOL on 2011-05-15
9.2 has reached EOL as of 2009-11-15

How is one supposed to upgrade in a supported manner once 9.2 is 
removed from the web site?  Luckily, it is still there now.  But if I 
have a problem with 9.2 during this intermediate upgrade step, Juniper 
won't support it because it is EOL?  Seems like someone didn't think 
this through very well.

I'd like to avoid the pain and just go directly from 8.5 to 9.3.  What 
are your experiences?

Thanks.