Why do you think Danes only can find the way round on a slick track ??
Take a look at the Ranking in the Polish Extra League - I don't think there are to many slick tracks there:
Denmark:
Nicki Pedersen 11,10
Hans Andersen 9,26
Niels Kr. Iversen 7,19
Kenneth Bjerre 7,12
Bjarne Pedersen 9,27 (Polish 1st Division)
Total 43,94 incl. one rider from 1st Division
Australia:
Leigh Adams 10,92
Jason Crump 9,11
Ryan Sullivan 8,81
Chris Holder 6,06
Rory Schlein 7,88 (Polish 1st Division)
Total 42,78 incl. one rider from 1st Division
Poland:
Thomas Gollob 9,13
Krzysztof Kasprzak 8,62
Grzegorz Walasek 8,54
Jaroslaw Hampel 8,00
Damian Balinski 7,92
Total 42,21 All riders from extra-league
Britain:
Scott Nicholls 7,87
Lee Richardson 6,56
Edward Kennett 6,00
Chris Harris 10,37 (Polish 1st Division)
Simon Stead 6,75 (Polish 1st Division)
Total 37,55 incl. two riders from 1st Division