What's the difference between ec.gp.breed.InternalCrossoverPipeline and ec.gp.koza.CrossoverPipeline? Best, Stefan Mit freundlichen Grüßen / Kind regards Stefan Wappler DaimlerChrysler Automotive IT Institute Ernst-Reuter-Platz 7 10587 Berlin/Germany Phone +49 (0)30 39982 358 Fax +49 (0)711 3052 160825 mailto: [log in to unmask]