Kingy - that comes under "current interpretation" rather than the letter of the law, but I agree.
Lowtime - I don't think it's a problem. The PFA has a system "the coaching scheme" for converting pilots to it's fleet, and a good thing too.
There's an ECAC (European Civil Aviation Conference) agreement for overflight of amateur built aircraft across Europe (which is most permit aircraft), but it's best to check in each individual case. Ken Cragie at PFA is I think the guru on this.
G