Thank you,
@Pogre @Eppie e
@ryanosaur @D Murphy @shadyJ , for your input and suggestions regarding my HT setup.
I have now taken the time and redid my frontend setup and arranged the L-R speakers vertically as per suggestions and as they are supposed to stand. They are now approximately 2 meters (6.56 ft) apart (measured from center of each speaker).
So, what did I hear differently?
To be frank, "not a day or night difference", but the sound stages did get wider and taller and that is what I like about this new setup a wider and taller soundstage.
(The stereo imaging was very good when the speakers were horizontally.)
The L-R speaker are slightly tilted inwards and are on sound isolation wedges to aim the tweeter to ear level at MLP, as is the center speaker.
The subwoofers are on their own sound isolation pads.
The center channel are on a stand that are covered in black velvet to mitigate light from the screen.
It is always fun to experience and hear different sound characteristics for different setups.
Again thank you for your feedback in previous posts.
Cheers,