Hole shot not Holes hot Ok I am looking at both versions with the SI being 60.00 more. From what I can see the only differences are the SI is a black finish where as the unobtainium is a stainless finish and the SI logo on the dial. Is that the only differences? I currently wear these 2. (1) has 3 different tritium tube colors and is very light with a titanium case the other is a stainless steal tank. Both are around 44 mm case size tank. I think this one will fit right in between. Any experiences with them?