I grew Uba Tuba last year. The seed came from the Chili Pepper Institute. Mine had no heat at all and had a very good, clean pepper taste. The pods grew fairly consistently to each other at about 2"-2.5" across in an odd 3 pointed UFO shape.
My plants grew very long and thin stemmed which caused problems when it started bearing fruit because it would bend to the ground. I believe this was because I had it planted to close to an okra row. The okra grew to be monsters at around 8' tall and overshadowed the plants.
It will be back in the garden this year.