Hello my name is Steven (new to this list and MEG'ing)

I have a question about flux transfer through the MEG.
First of all, I did some flux simulations with Femm. I was
experimenting with different MEG designs like the MEGII as on
http://starglider.netfirms.com/ But here is the thing I don't
understand about flux traveling trough steel: What we do in case of
the meg is switching the (most of it) magnetic flux through the
metal in a "closed loop" from magnet north> through metal> to south.
Well Femm simulation show a strong magnetic field through the steel.
Well, I created that test setup. BUT when you hold a pieces of steel
next to the meg-arm with the whole flux going trough, it is not
attracted to it at all (well, maybe just a little) So the flux of
the magnet is completely "IN" the steel of the MEG. So how can that
be efficient for generating power when the magnetic field does
not 'radiate' outside the steel for us to capture with a coil..?

Hope anyone can give me some insight on this.
Thanks!