Since we can't compare in the main thread lol
Here’s the real question. Do you believe that material, manufacturing, and design creates a significant difference in performance for thermal extraction.
All ball vapes have balls. All 3mm ruby balls retain the same heat. All 3mm thick 316SS retains the same heat.
So there are LOTs of people who have compared glass, quartz, ceramic, zirconium, titanium, and steel housings.
And LOTs of people who have compared ruby, boro, sic, ceramic, and titanium balls.
So. What difference really for shape and design?
Who knows.