I am guessing the heel would fit due to the super compact pattern on the fks, not sure about toes though, my guess would be all together it's a no go
here's a paper template for the fks (http://www.tetongravity.com/forums/showthread.php?t=153971
), a jester one is due in soon so you could get them and match to your bsl. put a hole punch through the holes, and see if there's 1cm of space in between them, that's the minimum distance they can be from eachother
why the switch?
if you can't find the jester template at least you only have to remove the bindings from one ski
My terrible photos
RIP Shane, you will be missed