I'm trying the principles of "Strict Constructionist" myself, haven't had a major conflict with myself yet.
There is no way we could pass the insane legislation we have on the books today if a Constitutional Admendment was required to do so.
Also, I think that for anyone to understand what libertarians are about, he/she would have to really understand the concept of "compelled performance" and all of its ramifications. If the King or the Government (makes no difference) can compel an individual, who has not violated the rights (not privileges) of another, to perform any act against his will, then freedom does not exist. The "compelled person" is a slave!