Thanks guys, the RMK comment was interesting.
To further add to my second question, I file a flightplan with an altitude that starts in class C (Sweden basically only has C and G), let´s say 3000ft. After a while the "roof" of the class G airspace goes up to 9500ft. As I get closer to my destination the roof comes down again. So I start in class C, fly through class G and re-enter class C. If I understand SM4 Pirate correctly I´d get something like "You´re leaving my airspace, continue own navigation, frequency change approved". Then it´s up to me to call the next controller as I near the destination and its class C? That´s a bummer (though I can understand a number of reasons why) since one of the best things that I´ve found with flying under control of ATC is the pair of "extra eyes" that help keeping me from taking a too close look at other aircraft.
I was hoping that I´d get this kind of service all the time when filing a flightplan, even when crossing class G airspace.
I´m flying a UL-B (the kind with stick and rudders, lol) with a radio and transponder so no problems with getting CLNC.
Cheers!