Mesh RDAs

Hi,

I've been curious about trying out a mesh RDA, and the most available here are the Profiles. Can anyone give me a rundown of the differences between the original and the 1.5, and which one to go for? From what I can tell the main difference is the size of the mesh, is that all?

Original source: https://www.e-cigarette-forum.com/threads/mesh-rdas.962193/