I can see, that there is quite a debate going on here

... I would add that the "new" Part FCL (FCL.510.A (b)) states 500 hrs in multi-pilot operations on aeroplanes. It does not specify what kind of aeroplanes... or am I missing something out somewhere?

Nevertheless I have sent my CAA an e-mail regarding this question... Now I just have to wait and see, what they have to say about this...