could a (thin) plate be made so that other mfr's bindings work on 07 slingshot boards? i already have in mind how this could work. on the center of the plate, 4 screws (A) would hold the plate down onto the board. on the sides where other brands would normally screw down, there would be stationary screws (B) that come up from the mounting plate into through the binding plate holes. essentially, you would place the binding plates over the screws, then there would be some sort of wing nuts to tighten the binding down onto the mounting plate.
too complicated? i think it's possible and could be cheap.
something similar to this?