I used to only use 808s, and at first would have preferred more GV products in 808 versions. I'm leaning more to 510-threaded
devices now, though. There just seems to be far more options available for 510-compatible products, with the notable exception of the newest Volt-style PCC. Any
batteries I buy in the future will either be Ego or 510 stick-style.
FWIW, the Vision Micro works great on 808
batteries using an adapter.