Not to beat a dead horse, but tonight I had another chance to compare the FM head with the Studer butterfly one. The comparison has some validity as both were played through nearly identical head preamps. I played the very good Cafe Blues tape, the second one.what will the FM heads do compared to the Studer butterfly heads?
The difference was striking - there was much more space and air with the FM head. The sounds just floated much freer in space with that head.
I was told their production is on hold at the moment, hopefully to resume in some near future... I truly wish they become available again. There's something magical about them.