IMHO they don't even look at your logbook, only as far as how many hours you might have gathered over the years.. .There is no experience to be gained at EDDF, as well as you will be distubring traffic flow, just as flying in a Cessna 152 to Heathrow wouldn't get you anywhere. . .. .Egelsbach is the biggest GA-field in Germany, and dealt with by Frankfurt Approach, so if you want to have a German experience, go there.