Kyle I also grow one that is akin to yours, to date also growing tight to the soil. It's a very slow grower. I've some tiny cuttings and they've "taken". I don't have a name for it though.
The Sedum, Green Mound though suggests its tendency is to grow as a mound so there's the differences. I understand your quandary
When I photographed the Green Mound at a nursery I thought it might've been the same also and was kind of pleased I'd found the name source. Not to be...... Close, but not close enough.