Thanks everyone. I do find this one easy to grow. It's more than doubled in size in a year, but it isn't readily available. It's very similar to blumei, but it's a bit smaller plant with a large flower to plant ratio.
Something I found interesting when researching both species. IOSPE lists blumei in the section Stenochilus, while longicaudatum is in the section Ephippium. Another species that is similar to both of these is B. nasica, but it is equally as hard to find.