Step Barrel/Spine Corrector and body types

I'm an instructor-student who loves the Step Barrel for teaching and working out. I currently have my own Pilates Arc at home but I'm not completely happy with the shape and what I'm able to get out of it for my body type. I'm now considering investing into a differently shaped barrel but it's hard to say what will be a good fit without actually seeing and trying it (not an option here, unfortunately). I'm on the taller side (169cm/about 5'6"), would say that I have a long torso, relatively flat back with a tendency towards lordotic (so I do love good lumbar support for e.g. Rollovers, Bicycles etc practiced on the Barrel), and not a huge range when it comes to back extensions. I've watched different workouts on here that use the Step Barrel and I think that the Clara might be a comfortable fit, but then again if I don't have a huge range in the first place, does it makes sense to have a Barrel with that high an arch? Any insights are very welcome, thank you in advance! :)