I've changed my surrounds twice (from Atoms to Titans to Studio 20's) and have always been changing placement/heighth as time goes on.
Currently the speakers are on stands that are just above ear level for the tweeter. They are positioned towards each other angling frontwards a bit. I did this as a compromise between HT and DVD-A.
I think its sounds good for both. YMMV.
All you can do is try a few different ways and see what sounds best in your setup.
edit sorry, I forgot to mention the surrounds are about 2' behind and away from the couch.
Currently the speakers are on stands that are just above ear level for the tweeter. They are positioned towards each other angling frontwards a bit. I did this as a compromise between HT and DVD-A.
I think its sounds good for both. YMMV.
All you can do is try a few different ways and see what sounds best in your setup.
edit sorry, I forgot to mention the surrounds are about 2' behind and away from the couch.