H & M Westwood 2062 Back Cushions Uncomfortable/Too Full/Firm-Best Replacement?

[Carolina guy]

I have a brand new Hancock and Moore Westwood Tilt Back #2062. The seat is fine under me but unfortunately the part of the chair with the two cushions which my back leans on is very uncomfortable for me. It hurts my back if I sit on it for more than about 20 minutes.This is obviously quite disturbing for such a fine and expensive chair.It is currently the least comfortable piece of furniture in my house.The back cushions feel too firm and too full.I'm skinny, hard and bony, 6’ & 168 lb., and my shoulder blades stick out like wings, so cushions that may be okay for bigger people tend to be too firm and full for me.I didn't specify different cushions when ordering, so it presumably has the standard ones, which I think are Fiber Plush.

The two back cushions as I said are definitely too full and firm for me.All the weight of my back is being supported in only two places when I sit in the chair in a fairly upright position, which is how I will use it 99% of the time. The lumbar pillow hits about 4” above my belt line, and the upper pillow hits only on my shoulder blades. It's like all the weight of my back is being supported by 2 pool noodles. This causes my back to remain tense, it can't relax. I feel like I should be able to sink into the chair more. If anyone has this chair or the somewhat similar Austin tilt back, I would like to know if they feel whether they can sink back somewhat into the chair. I realize that if you sink in too far it doesn't support you. But this seems to be way too far the other way.

I'm going to sit on the chair for a month or so and see if it breaks in. If it continues to be this uncomfortable, I guess my next step is to order replacement cushions.

The back cushion options I feel might be softer are Ultra down and premium white Goose feather and down. I also see Qualux, which I am guessing might be even firmer and not the best choice.I am wondering which replacement cushions would be softer, less full and firm?

I would be very grateful for anybody's recommendation on which replacement cushions for the back might be better, and why. Thanks in advance for any help.

I wasn't able to try the chair out before I ordered it because there were none within hundreds of miles of me. Covid was raging and it didn't feel safe to travel farther. I took a leap of faith and thought this is about the best chair from the best company there is, it's got to be comfortable right? I hope and feel this issue is fixable.