Ceiling speaker placement help

Vengeance
Vengeance Posts: 1
edited January 2020 in Speakers
Going to attempt a DIY Atmos ceiling speaker install with four RC80I ceiling speakers but getting different feedback on placements. Was looking for some pro advice here.

The room...open concept roughly 15x20 foot area. Tv and front speakers (L/C/R) centered on the 15 foot wall above fire place, rear speakers slightly behind sitting area and directly left and right mounted on the walls. We have 9 foot walls with a 10 foot Tray ceiling about 10x14 slightly offset in the middle of the room.

Question for the front two ceiling speakers no issues I can easily do 45 degrees in front of sitting area in the tray ceiling but the rears are the debate. I can place the rears into the tray and for visual appeal align them to the front but they would be at ~95-100 degrees above sitting area or roughly a foot behind sitting area OR I can place them at ~135 degrees not in the tray and 3-4feet behind sitting area. Visually they would be less noticeable but I am getting told to put them into the tray area. With the directional tweeters does it really matter much?also running a Denon avr 3600x

Should have added will be 5.1.4 with maybe in the future considering 7.1.4.

Any thoughts or ideas would be appreciated, planning to install this coming weekend..