Joerg, there are many versions of the ATI BM in the market currently.
For example,
1) the ATI twister in www.zeovit.com is using eheim 1250 pump while local reefers are getting the new pump.
2) the ATI BM tt i purchased have a grey neck, so does your agent, whereby those at www.zeovit.com have a clear acrylic neck.
3) My version comes with an eheim 1262 pump while those at www.zeovit.com are using the eheim 1260 pump.
Therefore, isnt it better for ATI to complete its R&D before launching the skimmer instead of coming up with so many versions?