Loving mine too!
Oh, that chart thing on their website, apparently goes on body size and if you sleep on your back or side, etc. But I think there are still only a few results. In stores, we only had 2 choices. The box had a chart, basically based on your size. I guess they think bigger/heavier people need a firmer pillow. We did the same as you and your DH, and I can tell a difference also.
Do it!!
Oops, lost my Jae quote. Adorable finches! And your OEGB girl was lovely. I breed silver duckwing OEGBs.
LOL, it's like we're turning into a Love MyPillow thread!