I cant' comment on the Kamisori, but I got the Soma Ensho to replace my stock Kilo saddle and I like it. I'm guessing it's a Velo--it's almost identical in shape and construction to the Charge Spoon (can anyone confirm that they are Velos?). I originally wanted the Spoon and ordered one from Wiggle, but it took over 3 mos for them to get them in stock. In the meantime I picked up the Ensho, which I expected to swap out when the Spoon arrived. It's been over a year, and I'm still on the Ensho, and the Spoon is sitting on the shelf waiting for the next project.
If I had it to do over, I'd get the Spoon: Just as comfortable, but 1/2 the price and better looking.