I had an SDG Bel-Air which I found really comfy, then one day I left my saddle and post at the side of the car after putting my bike in the boot. Tried a Gobi and found it an instrument of torture, no matter how I adjusted it, so sold it and went back to a Bel-Air.
I think it’s due to the low swoop on the nose of the bel-air which makes it good for me, the Gobi always felt like the back was pushing me forwards or the nose was sticking up too high.