Eguller Well, I was hoping you'd get lucky. I knew what to expect after using the shafts myself, but figured that as you'd been to a fitting, it would be OK for you; but still, I questioned it 😉.
Something just is not right about them, along with the way too light head weights.
I'm not understanding how, or why, you were even shown the Ventus shafts during the fitting. They cannot be ordered from TM at all, via the web, in any heads. And, they are an OEM only shaft, for the Sim/Sim II irons.
I recommend the Recoil Dart 75 shafts, if you get to change them out. But I don't think TM has that line.