I feel the best advice you can receive at this point is to indicate that there is a mailing list specific to discussions about
-current called
current-users@. You can find information on subscribing at the following:
http://netbsd.org/mailinglists/#current-users
I suspect a number of people are apprehensive on discussing this matter further publicly due to the fact that you intentionally want to maintain a very distinct difference between the kernel's version & userland. As mentioned before, this may be acceptable in the Linux world, but in the *BSD world the two are much more tightly integrated. Most people are very carefully about making sure that the two are synchronized.