Yeah, not sure what the birds he's flying now will be, he did sell off all his birds years back then re enter the sport so I'd imagine he will have tried to bring back some of his own birds although I honest wouldn't know other than following the results of the long distance performances in UK and the continent. Im sure I read somewhere he had some birds from another top flyer Noel Pieren. I could be wrong though.
Like alot of the top distance men on the continent they will have similar bloodlines in their lofts. Some of them go back to the old mons wegge/sions, bricoux and delbar birds. Lots of Jan aardens and different men who've developed this strain Muller, Van Der Wegen, Van Geel, Ko Nipius, Buijck etc. Lists is endless,even the modern day 'internationals' as I call them ,Battenburg v.d merwe etc loads of ties to these birds.