Can service conductors be pulled from the load side of a utility meter, through a nipple to a disconnect and continue on through a second nipple to a manual transfer switch? The load side of the MTS conductors would then leave the MTS and re-enter the disconnect where they would enter the building (the panel is back-to-back). The service is a 200A 208/120V 3 Phase System and all conduits and nipples are sized properly.