Show me your pics. Was thinking of getting a soul and winding down my 36's to 130mm but not sure if they will look daft on the frame or not. Looking for pics of BFe too
I run Coil Pikes on mine, obviously not as stiff as 36's.
Would say that they certainly highlight the flex in the frame, thats not necessarily a bad thing though but in all honestly I think the Soul is "over-forked" with something that stiff. I reckon a lighter fork, RS Rev springs to mind, would be a better match & not necessarily with the latest 15mm maxle.
Lovely frame though, capable of a lot more than you'd imagine for such a light steel frame.
Sounds more like BFe territory to me.
Your forks would be fatter than the frame 
I think my revs suit the Soul very well, the Maguras they put on the test bike seemed a wee bit beefier and stiffer but like takisawa says, it just highlights the flex in the frame a bit more (I've a feeling they do that deliberately, so you say "Ooh, lovely flexy steel").