Speakers along short or long wall

Thanks for the input. You are confirming my thinking. I used to have them at the end of the room 6 feet from the wall with windows. 8 feet apart, but the listening position was about 15 feet away. Everyone told me put the speakers along the short wall.
I moved back today. 8 feet between speakers. 10 feet to listing position. Improvement.
Like the equilateral triangle approach.
Thanks.

Now I am ready to tweak with the Radio Shack meter.

FWIW when you're thru tweeking with the RS meter just relax and listen for a few months. By then you will have the sound stage fully absorbed in your mind. Then revisit the positioning to tweek your sound stage even more. Move speakers about, no more than an inch or so at a time (after marking the original positions so you can move them back). Great set up usually takes a long time, much experimentation, and patience. Enjoy.

I would if it was me use the short wall.But experiment, and have fun...