Of course they're all different Jacobs tapers but that's what more adapters are for. The nicest, tidiest, smoothest feeling of them is the little Jacobs 1-13mm. The big Bison feels very nice too. The smaller Bison is fine but there is a very slight bit of tightness. Unfortunately, I've just discovered the Albrecht is seized. I'll feed it some penetrating oil over a few days and see how it goes.
I also got an ISO40-J6 adapter into the bargain, managed to tap that off the big Bison and it'll go on eBay.
You're right and I shouldn't look a gift horse in the mouth and all that, but I was expecting a couple of 2' square boxes!
I'll go through it all, clean it up, maybe cut some of the most scrappy, irregular shaped pieces to a more regular shape.
Some will end up on eBay and maybe there'll be a bit going to the hard plastics section at the recycling centre.
I just don't have the storage space for all of that and I suspect that even if I did, it would be unlikely I'd use it all up!