I have a regular orange Kwaiken. Haven't been able to use it yet though.
Although my experience with the knife is quite limited at this point, I might pick up a flipper too if they did one with micarta or g10. I don't tend to prefer metal handles so the ti is out for me. I also have a few knives in carbon fiber aready, while I like it, I don't feel like paying a premium for it anymore.
I think the Kwaiken could be improved in general with drilled or skeletonized liners and handle scales that are flush with the liners. I may do these things to mine, along with the flipper mod, but I plan to use it stock for a while first.