BE or B96 Driving licence

Hello I’m thinking about a trailer license. I read that there is now also the B96. Actually I thought great, because I read on the net that the should be clearly cheaper and must But after I have called here now driving schools I had to notice that all have one thing in common. I think the B96 is quite useless. And it costs with many just 100€ less than the big one. Is that normal, it would have to be much cheaper after all. And again z around Schein itself (B96) which is always talking about the zGG of the vehicles and hanger or? So my car has indeed GG 1800KG and the trailer I would like to borrow often is a big tipper with GG 2700KG. So the B96 is not enough either. It doesn’t care if I load the hanger only to 20% or ? Outcling is only the GG and what the team CAN DO , right?