Your statement: "If both are successful I would see Spiber coming up with a custom fiber (example super flexible) first and KBLB coming out with a fiber with the same properties at 1/50th the cost afterward. "
Response: You're assuming that the Spiber process yields the same quantity of product; however, their published articles suggest that the processes AFTER the spinning of the cocoon will actually substantially increase the amount of the product. So, IMO there is no sound basis to assume there is an economic advantage for KBLB. PLUS, they have so many options in their process selection and they're obviously advancing the technology at a brisk pace now.
IMO it is too early for either choice; however, the longer term future seems to be favoring Spiber.