Either rake would make for a perfectly rideable bicycle. I got real curious about trail a couple of years ago and made a fork with adjustable rake. After reading a great deal about how great certain trail figures were, and how awful others were, I was surprised at how unimportant it actually turned out to be.

IMO, if you are happy with the ride of racing bikes made within the last few decades, and are looking to go as light as possible, you should buy the carbon fork.